Internal validity is the extent to which a piece of evidence supports a claim about cause and effect , within the context of a particular study. It is one of the most important properties of scientific studies and is an important concept in reasoning about evidence more generally. Internal validity is determined by how well a study can rule out alternative explanations for its findings (usually, sources of systematic error or 'bias'). It contrasts with external validity , the extent to which results can justify conclusions about other contexts (that is, the extent to which results can be generalized ). Both internal and external validity can be described using qualitative or quantitative forms of causal notation .
102-493: The BCS National Championship Game , or BCS National Championship , was a postseason college football bowl game , used to determine a national champion of the NCAA Division I Football Bowl Subdivision (FBS), first played in the 1998 college football season as one of four designated bowl games, and beginning in the 2006 season as a standalone event rotated among the host sites of the aforementioned bowls. The game
204-563: A 0–0 tie. The Army–Navy game of 1893 saw the first documented use of a football helmet by a player in a game. Joseph M. Reeves had a crude leather helmet made by a shoemaker in Annapolis and wore it in the game after being warned by his doctor that he risked death if he continued to play football after suffering an earlier kick to the head. In 1879, the University of Michigan became the first school west of Pennsylvania to establish
306-463: A 56-game undefeated streak that included a 1902 trip to play in the first college football bowl game , which later became the Rose Bowl Game . During this streak, Michigan scored 2,831 points while allowing only 40. Organized intercollegiate football was first played in the state of Minnesota on September 30, 1882, when Hamline was convinced to play Minnesota . Minnesota won 2 to 0. It
408-514: A college football team. On May 30, 1879, Michigan beat Racine College 1–0 in a game played in Chicago. The Chicago Daily Tribune called it "the first rugby-football game to be played west of the Alleghenies ." Other Midwestern schools soon followed suit, including the University of Chicago , Northwestern University , and the University of Minnesota . The first western team to travel east
510-546: A conference after the collapse of the Big East football conference, and all other Big East sport conference affiliations. ** Alabama defeated fellow SEC member LSU in the 2012 BCS Championship Game, resulting in both a win and loss for the conference. Critics of the BCS National Championship argued against the internal validity of a so-called national championship being awarded to the winner of
612-495: A four-school playoff format, in which the participants are determined by a selection committee. The semifinals are played as existing bowl games on or around New Year's Eve and New Year's Day. The championship game is played approximately a week later at a neutral site selected through a competitive bidding process. The new format, known as the College Football Playoff began with 2014 college football season and
714-447: A great deal to Harvard's rugby. They decided to play with 15 players on each team. On November 13, 1875, Yale and Harvard played each other for the first time ever, where Harvard won 4–0. At the first The Game (as the annual contest between Harvard and Yale came to be named) the future "father of American football" Walter Camp was among the 2000 spectators in attendance. Walter, a native of New Britain, Connecticut , would enroll at Yale
816-434: A high degree of internal validity, precautions may be taken during the design of the study. As a rule of thumb, conclusions based on direct manipulation of the independent variable allow for greater internal validity than conclusions based on an association observed without manipulation. When considering only Internal Validity, highly controlled true experimental designs (i.e. with random selection, random assignment to either
918-548: A liking to the rugby game, and its use of the try which, until that time, was not used in American football. The try would later evolve into the score known as the touchdown . On June 4, 1875, Harvard faced Tufts University in the first game between two American colleges played under rules similar to the McGill/Harvard contest, which was won by Tufts 1–0. The rules included each side fielding 11 men at any given time,
1020-564: A negative effect on the interpretive power of the dependent variable. This occurs often in online surveys where individuals of specific demographics opt into the test at higher rates than other demographics. Events outside of the study/experiment or between repeated measures of the dependent variable may affect participants' responses to experimental procedures. Often, these are large-scale events (natural disaster, political change, etc.) that affect participants' attitudes and behaviors such that it becomes impossible to determine whether any change on
1122-501: A new code of rules based on the rugby game first introduced to Harvard by McGill University in 1874. Three of the schools—Harvard, Columbia, and Princeton—formed the Intercollegiate Football Association, as a result of the meeting. Yale initially refused to join this association because of a disagreement over the number of players to be allowed per team (relenting in 1879) and Rutgers were not invited to
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#17327719445671224-452: A number of variables or circumstances uncontrolled for (or uncontrollable) may lead to additional or alternative explanations (a) for the effects found and/or (b) for the magnitude of the effects found. Internal validity, therefore, is more a matter of degree than of either-or, and that is exactly why research designs other than true experiments may also yield results with a high degree of internal validity. In order to allow for inferences with
1326-503: A player to pick up the ball and run with it whenever he wished. Another rule, unique to McGill, was to count tries (the act of grounding the football past the opposing team's goal line; there was no end zone during this time), as well as goals, in the scoring. In the Rugby rules of the time, a try only provided the attempt to kick a free goal from the field. If the kick was missed, the try did not score any points itself. Harvard quickly took
1428-465: A professional roster spot as an undrafted free agent . Despite these opportunities, only around 1.6% of NCAA college football players end up playing professionally in the NFL. Even after the emergence of the professional National Football League (NFL), college football has remained extremely popular throughout the U.S. Although the college game has a much larger margin for talent than its pro counterpart,
1530-483: A reading course, improvements at the end of the course might be due to regression toward the mean and not the course's effectiveness. If the children had been tested again before the course started, they would likely have obtained better scores anyway. Likewise, extreme outliers on individual scores are more likely to be captured in one instance of testing but will likely evolve into a more normal distribution with repeated testing. This error occurs if inferences are made on
1632-510: A rougher version of football called "the Boston Game" in which the kicking of a round ball was the most prominent feature though a player could run with the ball, pass it, or dribble it (known as "babying"). The man with the ball could be tackled, although hitting, tripping, "hacking" and other unnecessary roughness was prohibited. There was no limit to the number of players, but there were typically ten to fifteen per side. A player could carry
1734-533: A round ball instead of a rugby-style oblong ball. This series of games represents an important milestone in the development of the modern game of American football. In October 1874, the Harvard team once again traveled to Montreal to play McGill in rugby, where they won by three tries. In as much as Rugby football had been transplanted to Canada from England, the McGill team played under a set of rules which allowed
1836-409: A second variable (the dependent variable ). For example, a researcher might manipulate the dosage of a particular drug between different groups of people to see what effect it has on health. In this example, the researcher wants to make a causal inference, namely, that different doses of the drug may be held responsible for observed changes or differences. When the researcher may confidently attribute
1938-477: A single postseason game. Critics lamented that the participants were selected based upon polls, computer rankings, popularity and human biases, and not by on-field competition, as in other major sports and all other levels of college football, which employed tournament-format championships. Often, the BCS system led to controversies in which multiple teams finished the season with identical records, and voters distinguished
2040-537: A team be required to advance the ball a minimum of five yards within three downs. These down-and-distance rules, combined with the establishment of the line of scrimmage, transformed the game from a variation of rugby football into the distinct sport of American football. Camp was central to several more significant rule changes that came to define American football. In 1881, the field was reduced in size to its modern dimensions of 120 by 53 1 ⁄ 3 yards (109.7 by 48.8 meters). Several times in 1883, Camp tinkered with
2142-512: A youth, he excelled in sports like track , baseball, and association football, and after enrolling at Yale in 1876, he earned varsity honors in every sport the school offered. Following the introduction of rugby-style rules to American football, Camp became a fixture at the Massasoit House conventions where rules were debated and changed. Dissatisfied with what seemed to him to be a disorganized mob, he proposed his first rule change at
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#17327719445672244-592: Is generally considered to be the second tier of American and Canadian football; ahead of high school competition , but below professional competition . In some parts of the United States, especially the South and Midwest , college football is more popular than professional football. For much of the 20th century, college football was generally considered to be more prestigious than professional football. The overwhelming majority of professional football players in
2346-445: Is no relationship between dependent and independent variable. Behavior in the control groups may alter as a result of the study. For example, control group members may work extra hard to see that the expected superiority of the experimental group is not demonstrated. Again, this does not mean that the independent variable produced no effect or that there is no relationship between dependent and independent variable. Vice versa, changes in
2448-636: Is scheduled through the 2025 season. From 1999 through 2005, ABC broadcast eight BCS National Championship Games pursuant to broadcasting rights negotiated with the BCS and the Rose Bowl, whose rights were offered separately. Beginning with the 2006 season, FOX obtained the BCS package, consisting of the Orange Bowl, Fiesta Bowl, Sugar Bowl, and the BCS National Championship Games hosted by these bowls, with ABC retaining
2550-482: Is the cause and which is the effect. A major threat to the validity of causal inferences is confounding : Changes in the dependent variable may rather be attributed to variations in a third variable which is related to the manipulated variable. Where spurious relationships cannot be ruled out, rival hypotheses to the original causal inference may be developed. Selection bias refers to the problem that, at pre-test, differences between groups exist that may interact with
2652-684: Is widely regarded as having originated with a game played in Montreal, in 1865, when British Army officers played local civilians. The game gradually gained a following, and the Montreal Football Club was formed in 1868, the first recorded non-university football club in Canada. Early games appear to have had much in common with the traditional " mob football " played in Great Britain. The games remained largely unorganized until
2754-515: The 2003 Big 12 Championship Game . That was the only season during the BCS era when the national championship was split, with Louisiana State University winning the BCS national championship and the University of Southern California winning the AP national championship , plus the football writers' national championship . The BCS National Championship Game was played for the final time in 2013 after
2856-659: The Fiesta Bowl , Sugar Bowl , Orange Bowl , and Rose Bowl . However, beginning with the 2006 season , the BCS National Championship Game was added as a separate contest, played after New Year's Day. The game rotated its location among the Fiesta, Sugar, Orange, and Rose venues. ^Notre Dame's loss in the 2012 BCS national title game was later vacated due to the use of Ineligible players . Note: Conference affiliations are contemporaneous with
2958-566: The NFL and other leagues previously played college football. The NFL draft each spring sees 224 players selected and offered a contract to play in the league, with the vast majority coming from the NCAA . Other professional leagues, such as the CFL and UFL , additionally hold their own drafts each year which also see primarily college players selected. Players who are not selected can still attempt to obtain
3060-693: The Old Main lawn on campus in State College, Pennsylvania . They compiled a 12–8–1 record in these seasons, playing as an independent from 1887 to 1890. In 1891, the Pennsylvania Intercollegiate Football Association (PIFA) was formed. It consisted of Bucknell University , Dickinson College , Franklin & Marshall College , Haverford College , Penn State, and Swarthmore College . Lafayette College , and Lehigh University were excluded because it
3162-401: The 19th century, when intramural games of football began to be played on college campuses. Each school played its own variety of football. Princeton University students played a game called "ballown" as early as 1820. In 1827, a Harvard tradition known as "Bloody Monday" began, which consisted of a mass ballgame between the freshman and sophomore classes. In 1860, both the town police and
BCS National Championship Game - Misplaced Pages Continue
3264-514: The 2011 national title game. Many voters cited TCU's membership in the non-automatic qualifying Mountain West Conference , perceived as having weaker teams, as one significant reason for their exclusion, despite TCU's undefeated regular-season records in both 2010 and the previous year. Adding to the controversy were comments made by the president of Ohio State University , Gordon Gee , who said that teams which played "the little sisters of
3366-777: The AFCA was contractually bound to select the BCS National Champion as its No. 1 team. Thus, the winner of the game was awarded the AFCA National Championship Trophy in a postgame ceremony. The BCS National Champion was also automatically awarded the National Football Foundation 's MacArthur Bowl . The Associated Press and the Football Writers Association of America were independent of
3468-406: The BCS National Championship Game was broadcast on ESPN Radio . During the BCS era, there was no NCAA Division I FBS playoff , and the BCS National Championship Game was just one of several national championship selection processes in existence. The American Football Coaches Association (AFCA) participated in a weekly Coaches' Poll published by USA Today ; for its final poll of the season,
3570-503: The BCS National Championship Game were numerous. In 2001 , Oregon , ranked second in the AP poll , was bypassed in favor of Nebraska despite Nebraska's 62-36 blowout to Colorado in its final regular season game. In 2003, USC was not included in the championship game , but beat Michigan in the Rose Bowl and ended up No. 1 in the final AP poll. The following season , undefeated Auburn , Boise State , and Utah teams were left out of
3672-473: The BCS National Championship Game. In 2010, three teams, Oregon, Auburn, and TCU, all finished the year with undefeated records. While TCU statistically led the other two teams in all three major phases of the game (1st in defense, 14th in offense and 13th in special teams ) the teams from the two automatic qualifying conferences , Oregon (Pac-12) and Auburn (SEC), were selected over the Horned Frogs for
3774-446: The BCS system; their national championship trophies could have been awarded to a school other than the BCS National Championship Game winner. College football NAIA : NJCAA : College football ( French : football universitaire ) is gridiron football that is played by teams of amateur student-athletes at universities and colleges. It was through collegiate competition that gridiron football first gained popularity in
3876-525: The College of New Jersey, in the first collegiate football game . The game more closely resembled soccer than football as it is played in the 21st century. It was played with a round ball , and used a set of rules suggested by Rutgers captain William J. Leggett , based on The Football Association 's first set of rules , which were an early attempt by the former pupils of England's public schools, to unify
3978-770: The Fifth Avenue Hotel in New York City to codify the first set of intercollegiate football rules. Before this meeting, each school had its own set of rules and games were usually played using the home team's own particular code. At this meeting, a list of rules, based more on the Football Association's rules than the rules of the recently founded Rugby Football Union , was drawn up for intercollegiate football games. Old "Football Fightum" had been resurrected at Harvard in 1872, when Harvard resumed playing football. Harvard, however, preferred to play
4080-507: The Mountain West Conference's proposed eight-team playoff plan. During 2012, the BCS actively considered changes to the format for the 2014 football season, to either to extend the season by one game by establishing a four-school semifinal round or by selecting the participants in the national championship game after the season's bowl games were completed. On June 26, 2012, the BCS presidential oversight committee approved
4182-452: The NCAA for its Football Championship Subdivision (FCS) , Division II , and Division III football championships. Others favored adopting the incremental step of adding a single post-bowl championship game between the winners of two BCS games among the top four ranked teams in the BCS standings, a so-called " plus-one " option. On June 24, 2009, the BCS presidential oversight committee rejected
BCS National Championship Game - Misplaced Pages Continue
4284-510: The NFL, are not permitted by the NCAA to be paid salaries. Colleges are only allowed to provide non-monetary compensation such as athletic scholarships that provide for tuition, housing, and books. With new bylaws made by the NCAA, college athletes can now receive "name, image, and likeness" (NIL) deals, a way to get sponsorships and money before their pro debut. Modern North American football has its origins in various games, all known as "football", played at public schools in Great Britain in
4386-756: The North Carolina State Fairgrounds in Raleigh, North Carolina . On November 13, 1887, the Virginia Cavaliers and Pantops Academy fought to a scoreless tie in the first organized football game in the state of Virginia . Students at UVA were playing pickup games of the kicking-style of football as early as 1870, and some accounts even claim that some industrious ones organized a game against Washington and Lee College in 1871, just two years after Rutgers and Princeton's historic first game in 1869. But no record has been found of
4488-873: The United States . Like gridiron football generally, college football is most popular in the United States and Canada. While no single governing body exists for college football in the United States, most schools, especially those at the highest levels of play, are members of the NCAA . In Canada, collegiate football competition is governed by U Sports for universities. The Canadian Collegiate Athletic Association (for colleges) governs soccer and other sports but not gridiron football. Other countries, such as Mexico , Japan and South Korea , also host college football leagues with modest levels of support. Unlike most other major sports in North America , no official minor league farm organizations exist for American football or Canadian football . Therefore, college football
4590-456: The average of six computer rankings . The Coaches' Poll was contractually required to name the winner of the game as its No. 1 team on the final postseason ranking; hence, the AFCA National Championship Trophy was presented to the winning team during a post-game ceremony. The methodologies of the BCS system and its selections proved to be controversial. Although in most years the winner of the BCS National Championship would also be designated as
4692-428: The ball only when being pursued. As a result of this, Harvard refused to attend the rules conference organized by Rutgers, Princeton and Columbia at the Fifth Avenue Hotel in New York City on October 20, 1873, to agree on a set of rules and regulations that would allow them to play a form of football that was essentially Association football; and continued to play under its own code. While Harvard's voluntary absence from
4794-481: The ball was advanced by kicking or carrying it, and tackles of the ball carrier stopped play – actions of which have carried over to the modern version of football played today Harvard later challenged its closest rival, Yale, to which the Bulldogs accepted. The two teams agreed to play under a set of rules called the "Concessionary Rules", which involved Harvard conceding something to Yale's soccer and Yale conceding
4896-426: The basis of only those participants that have participated from the start to the end. However, participants may have dropped out of the study before completion, and maybe even due to the study or programme or experiment itself. For example, the percentage of group members having quit smoking at post-test was found much higher in a group having received a quit-smoking training program than in the control group. However, in
4998-418: The behavior of animals in the wild. In general, a typical experiment in a laboratory, studying a particular process, may leave out many variables that normally strongly affect that process in nature. To recall eight of these threats to internal validity, use the mnemonic acronym , THIS MESS , which stands for: When it is not known which variable changed first, it can be difficult to determine which variable
5100-473: The bench seating). This allows them to seat more fans in a given amount of space than the typical professional stadium, which tends to have more features and comforts for fans. Only three stadiums owned by U.S. colleges or universities, L&N Stadium at the University of Louisville , Center Parc Stadium at Georgia State University , and FAU Stadium at Florida Atlantic University , consist entirely of chair back seating. College athletes, unlike players in
5202-474: The center. Later changes made it possible to snap the ball with the hands, either through the air or by a direct hand-to-hand pass. Rugby league followed Camp's example, and in 1906 introduced the play-the-ball rule, which greatly resembled Camp's early scrimmage and center-snap rules. In 1966, rugby league introduced a four-tackle rule (changed in 1972 to a six-tackle rule) based on Camp's early down-and-distance rules. Camp's new scrimmage rules revolutionized
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#17327719445675304-563: The city of New Haven , banned the play of all forms of football in 1860. American football historian Parke H. Davis described the period between 1869 and 1875 as the 'Pioneer Period'; the years 1876–93 he called the 'Period of the American Intercollegiate Football Association'; and the years 1894–1933 he dubbed the "Period of Rules Committees and Conferences". On November 6, 1869, Rutgers University faced Princeton University , then known as
5406-489: The college authorities agreed the Bloody Monday had to go. Harvard students responded by going into mourning for a mock figure called "Football Fightum", for whom they conducted funeral rites. The authorities held firm, and it was another dozen years before football was once again played at Harvard. Dartmouth played its own version called " Old division football ", the rules of which were first published in 1871, though
5508-493: The control or experimental groups, reliable instruments, reliable manipulation processes, and safeguards against confounding factors) may be the "gold standard" of scientific research. However, the very methods used to increase internal validity may also limit the generalizability or external validity of the findings. For example, studying the behavior of animals in a zoo may make it easier to draw valid causal inferences within that context, but these inferences may not generalize to
5610-416: The dependent measures is due to the independent variable, or the historical event. Subjects change during the course of the experiment or even between measurements. For example, young children might mature and their ability to concentrate may change as they grow up. Both permanent changes, such as physical growth and temporary ones like fatigue, provide "natural" alternative explanations; thus, they may change
5712-428: The dependent variable may only be affected due to a demoralized control group, working less hard or motivated, not due to the independent variable. Experimenter bias occurs when the individuals who are conducting an experiment inadvertently affect the outcome by non-consciously behaving in different ways to members of control and experimental groups. It is possible to eliminate the possibility of experimenter bias through
5814-444: The experimental group only 60% have completed the program. If this attrition is systematically related to any feature of the study, the administration of the independent variable, the instrumentation, or if dropping out leads to relevant bias between groups, a whole class of alternative explanations is possible that account for the observed differences. This occurs when the subject-related variables, color of hair, skin color, etc., and
5916-649: The first game in Virginia. On April 9, 1880, at Stoll Field , Transylvania University (then called Kentucky University) beat Centre College by the score of 13 + 3 ⁄ 4 –0 in what is often considered the first recorded game played in the South . The first game of "scientific football" in the South was the first instance of the Victory Bell rivalry between North Carolina and Duke (then known as Trinity College) held on Thanksgiving Day , 1888, at
6018-404: The first meeting he attended in 1878: a reduction from fifteen players to eleven. The motion was rejected at that time but passed in 1880. The effect was to open up the game and emphasize speed over strength. Camp's most famous change, the establishment of the line of scrimmage and the snap from center to quarterback , was also passed in 1880. Originally, the snap was executed with the foot of
6120-404: The first time. The Yale team was coached and captained by David Schley Schaff, who had learned to play football while attending Rugby School . Schaff himself was injured and unable to play the game, but Yale won the game 3–0 nonetheless. Later in 1872, Stevens Tech became the fifth school to field a team. Stevens lost to Columbia, but beat both New York University and City College of New York during
6222-454: The following year. By 1873, the college students playing football had made significant efforts to standardize their fledgling game. Teams had been scaled down from 25 players to 20. The only way to score was still to bat or kick the ball through the opposing team's goal, and the game was played in two 45-minute halves on fields 140 yards long and 70 yards wide. On October 20, 1873, representatives from Yale, Columbia, Princeton, and Rutgers met at
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#17327719445676324-431: The game dates to at least the 1830s. All of these games, and others, shared certain commonalities. They remained largely "mob" style games, with huge numbers of players attempting to advance the ball into a goal area, often by any means necessary. Rules were simple, and violence and injury were common. The violence of these mob-style games led to widespread protests and a decision to abandon them. Yale , under pressure from
6426-404: The game, though not always as intended. Princeton, in particular, used scrimmage play to slow the game, making incremental progress towards the end zone during each down . Rather than increase scoring, which had been Camp's original intent, the rule was exploited to maintain control of the ball for the entire game, resulting in slow, unexciting contests. At the 1882 rules meeting, Camp proposed that
6528-476: The game, which may differ from the current alignment. * The American Athletic Conference was known as the Big East during the 1991–2012 seasons. Because of a split between the non-FBS schools and FBS schools, the conference adopted its present name for the 2013 season. All sports of the Big East conference were now under the right of the AAC. But with this new agreement the Big East basketball conference can still remain
6630-437: The impact may be mitigated through the use of retrospective pretesting. If any instrumentation changes occur, the internal validity of the main conclusion is affected, as alternative explanations are readily available. This type of error occurs when subjects are selected on the basis of extreme scores (one far away from the mean) during a test. For example, when children with the worst reading scores are selected to participate in
6732-400: The independent variable and thus be 'responsible' for the observed outcome. Researchers and participants bring to the experiment a myriad of characteristics, some learned and others inherent. For example, sex, weight, hair, eye, and skin color, personality, mental capabilities, and physical abilities, but also attitudes like motivation or willingness to participate. During the selection step of
6834-472: The last two decades of the 19th century. Several major rivalries date from this time period. November 1890 was an active time in the sport. In Baldwin City, Kansas , on November 22, 1890, college football was first played in the state of Kansas . Baker beat Kansas 22–9. On the 27th, Vanderbilt played Nashville (Peabody) at Athletic Park and won 40–0. It was the first time organized football played in
6936-498: The meeting made it hard for them to schedule games against other American universities, it agreed to a challenge to play the rugby team of McGill University , from Montreal , in a two-game series. It was agreed that two games would be played on Harvard's Jarvis baseball field in Cambridge, Massachusetts on May 14 and 15, 1874: one to be played under Harvard rules, another under the stricter rugby regulations of McGill. Jarvis Field
7038-415: The meeting. The rules that they agreed upon were essentially those of rugby union at the time with the exception that points be awarded for scoring a try , not just the conversion afterwards ( extra point ). Incidentally, rugby was to make a similar change to its scoring system 10 years later. Walter Camp is widely considered to be the most important figure in the development of American football. As
7140-452: The mid-19th century. By the 1840s, students at Rugby School were playing a game in which players were able to pick up the ball and run with it, a sport later known as rugby football . The game was taken to Canada by British soldiers stationed there and was soon being played at Canadian colleges. The first documented gridiron football game was played at University College , a college of the University of Toronto , on November 9, 1861. One of
7242-637: The national champion by other organizations and polls (such as the Associated Press poll ), the 2003 season was a major exception, as the BCS rankings chose the AP's No. 3-ranked team, the University of Oklahoma , over the No. 1-ranked team in that poll, the University of Southern California , to participate in the national title game (the Sugar Bowl ) despite Oklahoma's loss to Kansas State University in
7344-493: The national title game (the Orange Bowl ). In 2008, Utah was excluded from the BCS championship for a second time despite being the only undefeated FBS team and finished second in the final AP poll behind Florida . In 2009, five schools finished the regular season undefeated: Alabama , Texas , Cincinnati , TCU , and Boise State ; however, the BCS formula selected traditional powers Alabama and Texas to participate in
7446-730: The nearest college to play football. It took place at Hamilton Park in New Haven and was the first game in New England. The game was essentially soccer with 20-man sides, played on a field 400 by 250 feet. Yale wins 3–0, Tommy Sherman scoring the first goal and Lew Irwin the other two. After the first game against Harvard, Tufts took its squad to Bates College in Lewiston, Maine for the first football game played in Maine . This occurred on November 6, 1875. Penn 's Athletic Association
7548-620: The next year. He was torn between an admiration for Harvard's style of play and the misery of the Yale defeat, and became determined to avenge Yale's defeat. Spectators from Princeton also carried the game back home, where it quickly became the most popular version of football. On November 23, 1876, representatives from Harvard, Yale, Princeton, and Columbia met at the Massasoit House hotel in Springfield, Massachusetts to standardize
7650-400: The observed changes or differences in the dependent variable to the independent variable (that is, when the researcher observes an association between these variables and can rule out other explanations or rival hypotheses ), then the causal inference is said to be internally valid. In many cases, however, the size of effects found in the dependent variable may not just depend on Rather,
7752-419: The participants in the game involving University of Toronto students was William Mulock , later chancellor of the school. A football club was formed at the university soon afterward, although its rules of play then are unclear. In 1864, at Trinity College , also a college of the University of Toronto, F. Barlow Cumberland and Frederick A. Bethune devised rules based on rugby football. Modern Canadian football
7854-580: The poor" instead of the "murderer's row" of teams in the automatic qualifier conferences did not deserve any national title game consideration. Gee retracted his statement and apologized after TCU defeated Wisconsin in the 2011 Rose Bowl (the Badgers had convincingly defeated Ohio State during the regular season). Many critics of the Bowl Championship Series favored a tournament with eight to sixteen teams, similar to those administered by
7956-402: The research study, if an unequal number of test subjects have similar subject-related variables there is a threat to the internal validity. For example, a researcher created two test groups, the experimental and the control groups. The subjects in both groups are not alike with regard to the independent variable but similar in one or more of the subject-related variables. Self-selection also has
8058-440: The rights to the Rose Bowl and BCS National Championship Games hosted by the Rose Bowl. On November 18, 2008, the BCS announced that ESPN had won the television rights to the BCS National Championship Game, as well as the other four BCS bowls, for 2011–2014. As part of ESPN's contract with the BCS, ESPN Deportes provided the first Spanish-language U.S. telecast of the BCS National Championship Game in 2012. From 1999 to 2014,
8160-489: The rules of their various public schools. The game was played at a Rutgers Field in New Brunswick, New Jersey . Two teams of 25 players attempted to score by kicking the ball into the opposing team's goal. Throwing or carrying the ball was not allowed, but there was plenty of physical contact between players. The first team to reach six goals was declared the winner. Rutgers won by a score of six to four. A rematch
8262-625: The rules were changed to allow tackling below the waist, and in 1889, the officials were given whistles and stopwatches. After leaving Yale in 1882, Camp was employed by the New Haven Clock Company until his death in 1925. Though no longer a player, he remained a fixture at annual rules meetings for most of his life, and he personally selected an annual All-American team every year from 1889 through 1924. The Walter Camp Football Foundation continues to select All-American teams in his honor. College football expanded greatly during
8364-422: The rules were formulated before the game. Internal validity Inferences are said to possess internal validity if a causal relationship between two variables is properly demonstrated. A valid causal inference may be made when three criteria are satisfied: In scientific experimental settings, researchers often change the state of one variable (the independent variable ) to see what effect it has on
8466-557: The same organizing group established a new system, the College Football Playoff , a four-team single elimination tournament, as the successor to the BCS. The first BCS Championship was played at the conclusion of the 1998 college football season in accordance with an agreement by the Big Ten Conference , the Pac-10 Conference , and the Rose Bowl Game to join the " Bowl Alliance " system. The expanded format
8568-591: The score of this contest. Washington and Lee also claims a 4 to 2 win over VMI in 1873. On October 18, 1888, the Wake Forest Demon Deacons defeated the North Carolina Tar Heels 6 to 4 in the first intercollegiate game in the state of North Carolina . On December 14, 1889, Wofford defeated Furman 5 to 1 in the first intercollegiate game in the state of South Carolina . The game featured no uniforms, no positions, and
8670-431: The scoring rules, finally arriving at four points for a touchdown, two points for kicks after touchdowns , two points for safeties, and five for field goals . Camp's innovations in the area of point scoring influenced rugby union's move to point scoring in 1890. In 1887, game time was set at two-halves of 45 minutes each. Also in 1887, two paid officials—a referee and an umpire —were mandated for each game. A year later,
8772-427: The sheer number of fans following major colleges provides a financial equalizer for the game, with Division I programs – the highest level – playing in huge stadiums, six of which have seating capacity exceeding 100,000 people. In many cases, college stadiums employ bench-style seating, as opposed to individual seats with backs and arm rests (although many stadiums do have a small number of chair back seats in addition to
8874-487: The state of Tennessee . The 29th also saw the first instance of the Army–Navy Game . Navy won 24–0. Rutgers was first to extend the reach of the game. An intercollegiate game was first played in the state of New York when Rutgers played Columbia on November 2, 1872. It was also the first scoreless tie in the history of the fledgling sport. Yale football starts the same year and has its first match against Columbia,
8976-441: The time-related variables, age, physical size, etc., interact. If a discrepancy between the two groups occurs between the testing, the discrepancy may be due to the age differences in the age categories. If treatment effects spread from treatment groups to control groups, a lack of differences between experimental and control groups may be observed. This does not mean, however, that the independent variable has no effect or that there
9078-466: The two schools organized a game for October 23, 1869, but it was rained out. Students of the University of Virginia were playing pickup games of the kicking-style of football as early as 1870, and some accounts even claim it organized a game against Washington and Lee College in 1871; but no record has been found of the score of this contest. Due to scantiness of records of the prior matches some will claim Virginia v. Pantops Academy November 13, 1887, as
9180-417: The underlying skills have changed for good, this threat to Internal Validity provides a good rival hypothesis. The instrument used during the testing process can change the experiment. This also refers to observers being more concentrated or primed, or having unconsciously changed the criteria they use to make judgments. This can also be an issue with self-report measures given at different times. In this case,
9282-493: The way a subject would react to the independent variable. So upon completion of the study, the researcher may not be able to determine if the cause of the discrepancy is due to time or the independent variable. Repeatedly measuring the participants may lead to bias. Participants may remember the correct answers or may be conditioned to know that they are being tested. Repeatedly taking (the same or similar) intelligence tests usually leads to score gains, but instead of concluding that
9384-498: The worthiness of their participation in the BCS National Championship with no set of formal criteria or standards. The end of the 2010 season was one of the best examples of this. Without any objective criteria for evaluation of the teams, the BCS forced voters to impose their own standards and tiebreakers. Critics noted that the system inherently fostered selection bias , and therefore lacked both internal validity and external validity . Controversies surrounding teams' inclusion in
9486-473: Was also the first time one team scored over 100 points and the opposing team was shut out. The next week, Princeton outscored Lafayette 140 to 0. The first intercollegiate game in the state of Vermont happened on November 6, 1886, between Dartmouth and Vermont at Burlington, Vermont . Dartmouth won 91 to 0. Penn State played its first season in 1887, but had no head coach for their first five years, from 1887 to 1891. The teams played its home games on
9588-512: Was at the time a patch of land at the northern point of the Harvard campus, bordered by Everett and Jarvis Streets to the north and south, and Oxford Street and Massachusetts Avenue to the east and west. Harvard beat McGill in the "Boston Game" on the Thursday and held McGill to a 0–0 tie on the Friday. The Harvard students took to the rugby rules and adopted them as their own, The games featured
9690-599: Was called the Bowl Championship Series . The Bowl Alliance and its predecessor, the Bowl Coalition , featured championship games in the 1992–1997 seasons. However, these could not always ensure a matchup between the top two ranked teams because of the lack of participation by the Big Ten and Pac-10. The BCS National Championship Game was initially rotated among the four participating bowl games:
9792-538: Was felt they would dominate the Association. Penn State won the championship with a 4–1–0 record. Bucknell's record was 3–1–1 (losing to Franklin & Marshall and tying Dickinson). The Association was dissolved prior to the 1892 season. The first nighttime football game was played in Mansfield, Pennsylvania on September 28, 1892, between Mansfield State Normal and Wyoming Seminary and ended at halftime in
9894-562: Was looking to pick "a twenty" to play a game of football against Columbia. This "twenty" never played Columbia, but did play twice against Princeton. Princeton won both games 6 to 0. The first of these happened on November 11, 1876, in Philadelphia and was the first intercollegiate game in the state of Pennsylvania . Brown entered the intercollegiate game in 1878. The first game where one team scored over 100 points happened on October 25, 1884, when Yale routed Dartmouth 113–0. It
9996-507: Was organized by a group known as the Bowl Championship Series , consisting of the Rose Bowl , Sugar Bowl , Fiesta Bowl , and Orange Bowl , which sought to match the two highest-ranked teams in a championship game to determine the best team in the country at the end of the season. The participating teams were determined by averaging the results of the final weekly Coaches' Poll , the Harris Poll of media, former players and coaches, and
10098-542: Was played at Princeton a week later under Princeton's own set of rules (one notable difference was the awarding of a "free kick" to any player that caught the ball on the fly, which was a feature adopted from The Football Association's rules; the fair catch kick rule has survived through to modern American game). Princeton won that game by a score of 8 – 0. Columbia joined the series in 1870 and by 1872 several schools were fielding intercollegiate teams, including Yale and Stevens Institute of Technology . Columbia University
10200-549: Was the 1881 Michigan team , which played at Harvard, Yale and Princeton. The nation's first college football league, the Intercollegiate Conference of Faculty Representatives (also known as the Western Conference), a precursor to the Big Ten Conference , was founded in 1895. Led by coach Fielding H. Yost , Michigan became the first "western" national power. From 1901 to 1905, Michigan had
10302-656: Was the first game west of the Mississippi River . November 30, 1905, saw Chicago defeat Michigan 2 to 0. Dubbed "The First Greatest Game of the Century", it broke Michigan's 56-game unbeaten streak and marked the end of the "Point-a-Minute" years. Organized collegiate football was first played in the state of Virginia and the south on November 2, 1873, in Lexington between Washington and Lee and VMI . Washington and Lee won 4–2. Some industrious students of
10404-488: Was the third school to field a team. The Lions traveled from New York City to New Brunswick on November 12, 1870, and were defeated by Rutgers 6 to 3. The game suffered from disorganization and the players kicked and battled each other as much as the ball. Later in 1870, Princeton and Rutgers played again with Princeton defeating Rutgers 6–0. This game's violence caused such an outcry that no games at all were played in 1871. Football came back in 1872, when Columbia played Yale for
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