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Author Question: Which of the following threats to internal validity are not controlled by the pretest-posttest ... (Read 90 times)

NguyenJ

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on: Jun 20, 2018
Which of the following threats to internal validity are not controlled by the pretest-posttest
  control-group design?
 
  A) statistical regression B) history
  C) maturation D) instrumentation

Question 2

Your advisor has completed a one-way ANOVA on data from her latest experiment and asks
  you to interpret the results. What should you evaluate to best determine the results?
 
  A) mean scores on the DV for each group
  B) the ANOVA line graph
  C) variance for each group and the degrees of freedom
  D) the ANOVA source table


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manuelcastillo

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

D

Answer to Question 2

D


NguyenJ

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Reply 2 on: Jun 20, 2018
Thanks for the timely response, appreciate it

bassamabas

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Reply 3 on: Yesterday
Wow, this really help

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