Exam (elaborations)
SPCE 630 Midterm Exam (answers)
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SPCE 630 Midterm Exam (answers) Threats to internal validity include: 1. Generalization, testing, placebo effects 2. The number of participants 3. The number of replications 4. History, maturation, testing, procedural infidelity 4. History, maturation, testing, procedural infidelity
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