PSY 120 Lecture Notes - Lecture 3: Internal Validity, Informed Consent, External Validity
9 Sep 2017
School
Department
Course
Professor
● Quantitative Research
○ Stanley Sue (1999)
○ Internal validity
■ Can draw cause and effect conclusions (internal to study)
○ External validity
■ Generalize your findings to other populations or settings (focus of
multicultural psychology)
● Research Question
○ Co-investigators and consultants
● Sampling
○ College students
○ Community samples
○ Internet samples
○ Patient samples
● Culturally Competent Participant Recruitment
○ Community distrust of researchers
○ Diverse research team
○ Informed consent
● Measurement
○ Linguistic equivalence
■ Language transition
● Ex: pop is soda in some places
● Back translation
○ Metric equivalence
■ Is the same behavior being measured across groups?
■ Does the same factor structure hold across groups?
○ Conceptual equivalence
■ Does the concept have the same meaning across groups?
○ Functional equivalence
■ Does the same behavior have the same function/impact across
contexts?
● Qualitative Research
○ Rich descriptions of individuals or small groups
● Value of Research
○ Systematically learn about others
