PSY309H5 Lecture Notes - Lecture 2: Observational Error, Content Validity, Diminishing Returns
Document Summary
Lecture 2: operationalization of variables - validity and. Review: 3 goals + claims, describe (frequency), predict (associations), explain (causality, 4 validities. Internal --> 3rd variable: external --> generalizability, not just about populations - does it generalize to other measures, construct --> measuring what you actually measuring. Statistical --: stats review, p-values, effect sizes, p-value = probability of getting the results you got or results more extreme if the. Null were true (was it likely to see this effect if there was no effect?: qrps = low replication, hiding variables, bad studies, adding people to the study, running many analyses, acting like you had esp! Today: defining constructs, types of variables, modalities. Love, anxiety, mindfulness: operational definition: defines our construct by specifying exactly how it is measured or manipulated. Love as self-report, a(cid:374)(cid:454)iet(cid:455) as (cid:272)ortisol, (cid:373)i(cid:374)dful(cid:374)ess as (cid:373)ediatio(cid:374) : variables in design.
