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Bibliobibuli Bibliobibuli
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6 years ago
Subjects in a multiple group experimental study are tested for how much time it takes them to navigate a maze and find the chocolate. The maze is reconstructed after each run, and three different floor plans are used.
 
  Each group is tested eight times in eight hours. at a different time of day. The runs later in the day have faster times than the earlier ones. Which threat to internal validity might account for this difference?
  a. Instrumentation
  b. Selection
  c. Maturation
  d. Statistical regression toward the mean
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pripawpripaw
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Bibliobibuli Author
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6 years ago
this is exactly what I needed
Harvinder
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Yesterday
Helped a lot
einstein
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2 hours ago
Correct Slight Smile TY
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