Sociology 2206A/B Study Guide - Concurrent Validity, Convergent Validity, Face Validity
12 Apr 2014
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Ch 1, 2, 3, 4 (emphasis will be on what we cover in class today) We will break and come back to discuss assignment #1. Covered in some detail later in this course and much in stats. Choose statistical techniques and test relationships between variables. Check for validity and reliability issues moving onto some of these now. Reliability always concerned with the consistency of measures of a concept, yet several definitions: stability over time: Consistency in a single measure over time (assuming no change in what is being measured) Asking income over time is terrible in terms of reliability because people often guess. Even though consistent over time, give us different answers: internal reliability: Consistency in measurement when using multiple indicators to measure the same concept of a single point in time. Cronbach"s alpha coefficient > . 80 there is an underlying concept and each of the things you chose to relate it to does relate.
