CMNS 260 Study Guide - Quiz Guide: Cluster Sampling, Sampling Frame, Nonprobability Sampling

• School: Simon Fraser University
• Department: Communication
• Course: CMNS 260
• Professor: Janet Marontate

Document Summary

Response categories in a scale of other measure should be organized so that a person"s responses fit into only 1 category. All cases fit into one of the attributes of a variable. All the items in a scale or index fit together, or measure a single construct. Good measure alpha should be 0. 7 or higher. Index is a combination of items into a single numerical score. Various components or subparts of a construct are each measured, then combined into one measure. Every item in the index has face validity. Weighting can produce different index scores, but in most cases, weighted and unweighted indices yield similar results. Validity and reliability are threatened whenever data for some cases are. Standardization involves selecting a base and dividing a raw measure by the. Removes the effect of relevant but different characteristics in order to make the important differences visible. Measure of a variable expressed as a numerical score.