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Author Question: Which of the following represents the most serious threat to internal validity? A) selection bias ... (Read 89 times)

TVarnum

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on: Jun 19, 2018
Which of the following represents the most serious threat to internal validity?
 
  A) selection bias
  B) nonresponse bias
  C) heterogenous attrition
  D) homogeneous attrition

Question 2

Which of the following threats to validity could often be thought of as a form of attitude polarization?
 
  A) the Hawthorne effect
  B) testing effects
  C) regression toward the mean
  D) participant expectancies


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asdfasdf

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

C

Answer to Question 2

B


TVarnum

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Reply 2 on: Jun 19, 2018
Thanks for the timely response, appreciate it

skipfourms123

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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