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Author Question: To estimate changes in test reliability that would result from changing the length of a test, one ... (Read 50 times)

stephzh

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on: Jun 20, 2018
To estimate changes in test reliability that would result from changing the length of a test, one would use the
 
  a. phi coefficient. c. Spearman-Brown.
  b. Kuder-Richardson 20 d. coefficient alpha.

Question 2

A researcher wishes to increase the score reliability of a reading test being used in a study. The score reliability could be most easily increased by increasing the
 
  a. number of items on the test. c. homogeneity of the group tested.
  b. number of persons tested. d. number of types of items on the test.


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verrinzo

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

C

Answer to Question 2

A


stephzh

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Reply 2 on: Jun 20, 2018
Excellent

xiazhe

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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