MGMC02H3 Lecture Notes - Lecture 5: Astrological Sign, Double Negative
Document Summary
Lecture notes - question wording and other issues. Validity (systematic) - degree to which measure actually measures intended measurement. Reliability (consistent) - degree measurement yields consistent results (same responses) Consistent - common measure of accuracy of measurement tool. Reliability assessment: test-retest method - same measurement on same unit more than once and comparing results. More similar results the measurements are = reliable. (eg: how old are you?) Internal consistency method - assess extent to which index related to individual items. Several items w/ underlying concept = positively correlated with each other: external validation - indicator forms its relationship to indicators of other concepts to which the concept measure should theoretically be related. Discomfort / reluctance to provide true opinion: survey characteristics. Answer set effects (wording of possible responses, forced / unforced answers, # of possible responses: context effects. Priming ways of manipulating something into your mind affecting answers to questions unrelated make certain aspects / criteria to judge salient issues.
