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This study examined whether offering extra credit for research participation was effective at meeting educational goals (e.g., enabling all students to learn about the research process) and providing a representative sample of college students for researchers. Results revealed that less than half (38%) of 193 undergraduate students in an introductory course participated in research. Those who did participate scored higher on measures of academic performance than those who did not participate. Offering extra credit for research participation might not meet educational goals and possibly limits the generalizability of research findings.
Padilla‐Walker et al. (Fri,) studied this question.