PSYC 215 Lecture Notes - Lecture 5: Simplicity Theory, Construct Validity, Operational Definition
3 Feb 2018
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Hypothesis = testable statement about relationship between 2+ variables derived from theory specific prediction about what happen in specific situation. Report results might start all over again. Basic: goal increase understanding human behaviour, often designed to test specific hypothesis from specific theory, ex. Interest in examining sex differences in how brain activated by acting with someone who is distressed. Applied (cid:862)here a(cid:374)d (cid:374)o(cid:449) resear(cid:272)h(cid:863) closer to real world: goal enlarge understanding naturally occurring events, additional goal find solutions to practical problems, ex. Independent = factors experimenters manipulate to see if affect dependent. Dependent = factors experimenters measure to see if they are affected by independent. Subject = variables that characterize pre-existing differences among study participants. Conceptual variables abstract or general variables theories usually stated in terms of conceptual variables but need concrete definition of how measured (ex. Operational definition = states how conceptual variable will be manipulated or measured (ex.
