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Author Question: During the first treatment condition of a within-subjects experiment, the participants learn a new ... (Read 163 times)

justinmsk

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on: Jun 19, 2018
During the first treatment condition of a within-subjects experiment, the participants learn a new skill that helps improve their performance in later treatment conditions. For this study, the internal validity is threatened by ____.
 
  a. history effects
 b. instrumentation
 c. order effects
  d. regression toward the mean

Question 2

A(n) ____ is often a composite, combining different measures from different sources.
 
  a. instrument
  b. index
  c. test
  d. scale


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brittanywood

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

c

Answer to Question 2

b


justinmsk

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Reply #2 on: Jun 19, 2018
Thank you!


brittanywood

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Reply #3 on: Jun 19, 2018
Happy to help


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