Chapter 3. Neuroscience and Behavior

3.1 Neuroscience and Behavior

Topic: Which Sports Have the Highest Rates of Concussion?

Statistical Concepts Covered: In this applet we will use comparison groups, discuss the importance of sample sizes, and the need for empirical data to check conventional wisdom.

Introduction:

Psychology, like all other scientific fields, relies on empirical evidence to draw conclusions about the world. The introductory story for this chapter makes clear the serious consequences of damage to the brain. This makes understanding how the brain works, the primary topic of this chapter, all the more important. Understanding when, where and why brain injury is most likely to occur helps coaches, athletes, and parents make better decisions about taking preventative actions.

Sometimes the data support commonly held folk beliefs, and sometimes the data reveal new or surprising relationships between the variables involved. The best way to see if your beliefs about how the world works are true is to collect data and see what story they tell. However, you must also be careful to make sure that your data collection techniques are as free from potential biases and confounding variables as you can.

This applet uses data that was collected by the Institute of Medicine and National Research Council on the rates of sports-related concussions for men and women playing high school and college sports. While exploring this data, you should be thinking about how your intuitions may or may not line up with the actual empirical evidence and how data collection methods may influence the data and, as a result, the subsequent conclusions.

Richard Alan Hullinger, Indiana University, Bloomington
Melanie Maggard, University of the Rockies

Question 1

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Correct.
Incorrect. The more people that play a sport, the greater the total number of injuries overall. Using the rate of injuries per 10,000 events allows for a more even comparison of risk across sports with drastically different population sizes.

Question 2

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Correct.
Incorrect. The correct answer is 6 concussions per 10,000 events.

Question 3

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Correct.
Incorrect. The correct answer is Women’s field hockey.

Question 4

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Correct.
Incorrect. The correct answer is Women’s Basketball

Question 5

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Correct.
Incorrect. Concussion rates are a complex interaction of the sport, when it is played, and the gender of the player.

Question 6

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Correct.
Incorrect. The women’s sports have a higher rate of concussions.

Question 7

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Correct.
Incorrect. The correct answer is Women’s field hockey and men’s wrestling.

Question 8

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Correct.
Incorrect. College players have received more coaching about proper/safe tackling technique, and have access to newer equipment; both factors may lead to lower injury rates.

Question 9

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Correct.
Incorrect. Caution must be used when comparing the values between the two groups, but as long as the data in both samples was collected in an unbiased way, limited comparisons can be made.

Question 10

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Correct.
Incorrect. The actual concussion rates may not have changed, but a greater awareness of the problem has caused more of the injuries to be diagnosed and reported.

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