PSYB01H3 Chapter Notes - Chapter 14: Quasi, Institute For Operations Research And The Management Sciences, Internal Validity
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External validity: the extent to which the results can be generalized to other populations and settings. Generalizing to other populations of research participants. Rarely our research participants randomly selected from the general population. Most available: university students, volunteers, mostly males or mostly females, or from a particular culture. University undergraduate students were studied in about 68% of journal articles across ve top-tier psychology journals in 1975 1985 and 1995. Highly restricted populations: rst and second-year students taking introductory psychology course. Young, characteristics of late adolescence: developing self identity, social and political attitudes that are in a state of ux, high need for approval, unstable peer relationships. Intelligent, high cognitive skills, know how to win approval from authority. Conclusions drawn about humanity from these participants are questionable. Researchers usually ask people to volunteer to participate in their research. Tend to be more highly educated, more in need of approval, more social. High levels of conscientiousness and lower levels of neuroticism.
