Instead there may be a common cause factor making both height and shooting

Instead there may be a common cause factor making

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line, it is possible that shooting skills are not necessarily caused by height. Instead, there may be a common-cause factor, making both height and shooting skills to change in the same way. Although basketball experience was not taken into account, this external variable could have shaped the relationship between the two variables. It could be that taller people are more likely to join and practice basketball, as height is an advantageous characteristic when playing the game (not necessarily when shooting from the free throw line). If this is the case, then the taller people in the experiment may have had an overall greater amount of basketball experience, and hence were more capable of making the shots. Since basketball experience is a variable that may have altered my conclusion, making the relationship seem correlated, I could also attempt this investigation taking into account previous experience. If I only chose people who have similar amounts of basketball experience, then the results would more clearly indicate whether height affects one’s ability to make shots. It is also important to take into account that I had used a sample size of only 40, out of 3000 students in the population. This may not have been sufficient to accurately represent the entire school. To improve my investigation, I would enlarge my sample size, ensuring that I am getting a group that well represents the school.
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  • Fall '12
  • jp
  • Correlation and dependence, Pearson product-moment correlation coefficient, free throw, free throw line, Personal foul

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