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Author Question: The researchers then wanted to assess the test for validity, and so each subject was given the ... (Read 77 times)

luvbio

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The researchers then wanted to assess the test for validity, and so each
  subject was given the WAIS-R IQ test and their Test (not the retest) scores
  were compared with their WAIS-R IQ scores.
 
  Subject  Brain Scaled Score WAIS-R IQ
   1. 50 100
   2. 60 115
   3. 65 120
   4. 40 96
   5. 35 100
   6. 40 85
   7. 60 115
   8. 55 105
   9. 50 103
   10. 45 90
   11. 52 120
   12. 48 105
   13. 51 110
   14. 49 95
   15. 50 100
   16. 50 100
   17. 37 95
   18. 63 112
   19. 50 100
   20. 50 100
 
  What is the Pearson correlation between the two sets of test scores?
 
 
 What will be an ideal response?

Question 2

With very small sample sizes, the estimated standard deviation of the population yields a slightly higher value than does the true standard deviation of the sample.
 
  Indicate whether the statement is true or false



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tuate

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Answer to Question 1

r=.771

Answer to Question 2

T





 

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