A Nursing Student Is Reviewing a Research Study in Which

question 3

Multiple Choice

A nursing student is reviewing a research study in which researchers used a pretest/posttest design to examine the effect of an AIDS education intervention on teenagers' knowledge about the condition over a school year. What threats to internal validity could be present? (Select all that apply.)

• A) Maturation
• B) Selection effects
• C) Reactivity
• D) Hawthorne effect
• E) Testing

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