PSY320H1 Lecture Notes - Lecture 2: Convergent Validity, Discriminant Validity, Face Validity
Document Summary
Different from internal state, maybe it"s a complex attitude and its hard to report, or maybe it"s an embarrassing attitude so you report something different. Must move from abstract concepts to concrete representations (or measurements) Operational definition: specifies explicitly how to measure a variable so that one can get assigned a ranking for the construct (e. g. , high, low, medium, etc) You can"t see an attitude - but can infer it. Necessarily shortcuts to simplify complex concepts into something that is more readily studied. Need to be specified so that others can redo the study, or challenge the shortcuts taken. Refers to the consistency of a measure. A test is considered reliable if we get the same result repeatedly. To assess the consistency of a test across time. Test is administered twice at two different points in time. Two or more independent judges score the test. Consistency of results across items on the same test.
