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A SPORTS PSYCHOLOGIST IS STUDYING THE EFFECTS OF HEAD

A SPORTS PSYCHOLOGIST IS STUDYING THE EFFECTS OF HEAD

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Author: Christine Farr
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A sports psychologist is studying the effects of head trauma on short-term memory in a group of 15 college football players. Specifically, she hypothesizes that players who have experienced head trauma will have lower scores on a short-term memory task than the general population of male college students. She administers an instrument to assess short-term memory to the players in the sample, all of whom have experienced some sort of football-related head trauma. The mean score for male college students on the instrument is 22, and the possible range of scores is 0–30. The scores are recorded in the table below. Choose the correct test to analyze this question, set up the SPSS file, and run the analysis. Follow the directions under the table below.
 
ST Memory Scores

18
17
22
24
19
12
15
15
14
18
9
25
7
18
20

Paste the appropriate SPSS output. (3 pts)
 
Paste the appropriate SPSS graph. (2 pts)
 
Write a current APA-style Results section based on your analyses. All homework Results sections must follow the example given in the SPSS tutorials and the Course Content document “Writing Results of Statistical Tests in Current APA Format” (note: you do not have to refer to a figure). Remember to include a decision about the null hypothesis. (3 pts)


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