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Author Question: If X is independent of Y, the safest Y pred., given information about X, is the mean of the Y ... (Read 9 times)

ghost!

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on: Jun 20, 2018
If X is independent of Y, the safest Y pred., given information about X, is the mean of the Y distribution.
 
  Indicate whether the statement is true or false

Question 2

Another researcher attempted to shorten the NCAA test
  shown above and reduced the number of items to only 20. The mean on this
  revision was 10 with an SD of 3. Find its KR21 reliability.
 
  What will be an ideal response?


nathang24

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Reply #1 on: Jun 20, 2018
Answer to Question 1

T

Answer to Question 2

KR21 = .468


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