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Author Question: When a researcher asks the question, Have subjects been pre-selected so as to represent the extremes ... (Read 154 times)

stevenposner

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on: Jun 20, 2018
When a researcher asks the question, Have subjects been pre-selected so as to represent the extremes on the variable of interest? she is concerned with which one of the following potential threats to internal validity?
 
  a. testing effect
  b. maturation
  c. subject selection
  d. regression effect

Question 2

A change in behavior simply as a result of earlier experience in the study is a threat to _________validity.
 
  a. internal
  b. external
  c. construct
  d. statistical


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ApricotDream

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

d

Answer to Question 2

a


stevenposner

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Reply #2 on: Jun 20, 2018
Thank you!


ApricotDream

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Reply #3 on: Jun 20, 2018
Happy to help


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