Describe nonequivalent control group pretest posttest design

Reference no: EM131350960

1. Describe the threats to internal validity discussed in the text: history, maturation, testing, instrument decay, regression toward the mean, and selection differences.

2. Describe the nonequivalent control group pretest-posttest design. Why is this a quasi-experimental design rather than a true experiment?

Reference no: EM131350960

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