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Answered: - A study compared the results from an experiment. Participants in


A study compared the results from an experiment. Participants in the treatment group were selected from a private school with strong parental support and participants in the control group were selected from a public school without strong parental support. This is an example of which type of threat to internal validity?

Select one:

a. Instrumentation

b. Participant effects

c. Pretesting effect

d. Selection

 

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Oct 07, 2020

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