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Identifying Threats to Internal Validity Threats to internal validity are common in quasi- experimental studies. What...

Identifying Threats to Internal Validity Threats to internal validity are common in quasi- experimental studies. What follows is a list of some threats you’ve encountered in this chapter and in Chapter 5. For each of the hypothetical experiments described, identify which of these threats is most likely to provide a reasonable alternative explanation of the outcome. In some cases, more than one threat could be involved.

Question: A 6-week program in managing test anxiety is developed and given to a sample of first-semester college students. Their anxiety levels are significantly lower at the conclusion of the program than they were at the start.

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