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Does the coloration of goalie pads have an affect upon the goalie's performance?

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Our group took all of the starting goalies in the National Hockey League for our experimental units.

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Given there are currently 31 teams in the National Hockey League (NHL), therefore there are 31 starting goalies. The term "starting goalie" can be defined as the goalie that plays the majority of the minutes for the team during the 82 game regular season.

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Our group conducted an observational study to determine what the dominate color of each goalie's pads.  The dominate color is determined by the square footage of colors compared to the pad as a whole.  The goalies were then separated into 2 groups: mostly white and mostly black. Halfway through the regular season, the goalies will be forced to switch the dominate color pads to the opposite.

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Our explanatory variable is the dominate color of the pads.

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Our group will take the statistics (goals against average, save percentage, and total shutouts) of half of the goalie's games. The group will then collect the same statistics for the other half of the season.

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There is a goalie from each team so all teams are represented in this study. There could be possible lurking variables in that the team is playing poorly, there could be injury problems or the goalie could be in a slump for a stretch of a season.

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The sample size is 31 goalies in the NHL. The margin of error is 17% in this experiment. I got this number by taking 1 divided by the square root of 31.

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There is an actual significance in the color of pads. The save percentage went up .015 and the GAA went down by 1.16 goals. This is a big difference and could possible win games for a team.

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In this study, goalies with mainly white pads had better stats than goalies with mostly black pads. In the first half of the season, the goalies with white pads had an average save percentage of .923 and a GAA of 2.12. In the half of season where the goalies wore black pads, the same goalies averaged a .908 save percentage and a 3.28 GAA.

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This experiment can be redone every single season that is desired. This could also be done in the American Hockey League or East Coast Hockey League. Similar experiments can be replicated in any league.

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The experiment will experience crossover halfway through the season. The goalies will get a new pair of pads with the opposite color as the dominant color of pads.

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In conclusion, the color of pads does make a difference in a goalie's performance.

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There will be a 10 game preseason in which the goalies will wear mostly white pads for 5 games and mostly black pads for 5 games. This is what the precedent will be for the season.

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The experiment will not be a blind experiment because the goalie is aware of what color pads they have and the scientists are also aware of the color of pads.