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Author Question: At a minimum, how many participants would be needed for a matched-subjects design comparing three ... (Read 45 times)

jerry coleman

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on: Jun 19, 2018
At a minimum, how many participants would be needed for a matched-subjects design comparing three different treatment conditions with 20 scores in each treatment?
 
  a. 20
 b. 60
 c. 90
 d. 120

Question 2

When Likert scaling is used, one of the criteria for the inclusion of an item in the final scale is based on ____.
 
  a. the items statistical independence from the other questions
  b. the size of the interquartile range of expert raters
  c. whether the item as rated by experts has a high correlation with the total score across items
  d. the lowest variability across judges


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mirabriestensky

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Reply #1 on: Jun 19, 2018
Answer to Question 1

b

Answer to Question 2

b


jerry coleman

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Reply 2 on: Jun 19, 2018
Wow, this really help

frankwu0507

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Reply 3 on: Yesterday
Excellent

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