PSYB30H3 Lecture Notes - Convergent Validity, Confirmation Bias, Discriminant Validity
Document Summary
Observations involves the use of systematic, standardized procedures for observing, measuring, and recording behaviours and personality features. Reliability across: will give you the same results each time you test the person: time, items test-retest. Chronbach"s alpha (greater than 0. 7 but normal want greater than 0. 8) A similar to correlation tells you how all the items of a test hang together: raters. Convergent validity: how well do your scores on one measure converge/are similar to the scores on another measure that is used for the same purpose. Discriminant validity: if two measures are used for two different things then if the same person takes the test then they should have different data on both like there should not be a correlation between the two. Objective tests: mmpi, mbti, neo - pi (r) Projective tests: sentence completion, rorschach inkblot test, thematic apperception test. Freud: dreams represented the unconscious desires of the dreamer.
