Which of the following is the most serious threat for the typical two-group design?
A) selection
B) maturation
C) history
D) instrumentation

Name: Which of the following is the most serious threat for the typical two-group design? A) selection B) maturation C) history D) instrumentation
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Question

Quizplus · Accepted Answer

Selection is the most serious threat in a two-group design because differences between groups can affect the outcome, leading to biased results.

Which of the Following Is the Most Serious Threat for the Typical