PSY-2150 Study Guide - Quiz Guide: Simple Random Sample, Quota Sampling, Social Desirability Bias

• School: Vanderbilt University
• Department: Psychology (A&S)
• Course: PSY-2150
• Professor: Sandberg Elisabeth

Document Summary

Cluster sampling: units (geographic regions, schools) that contain members of the population are identified. These units (clusters) are then randomly sampled, and within each sampled cluster either all people or randomly chosen people are selected to participate in the survey. Confidence level: a degree of confidence that the true population value resides within a particular margin of error. Convenience (haphazard) sampling: members of a population are selected nonrandomly for inclusion in a sample on the basis of convenience. Inter-rater reliability: different raters using the same coding system agree on how they classify or otherwise score participants" responses. Interviewer effects: aspects of the interviewer"s presence that distort participants" true responses. Likert scale: measures people"s attitudes by combining scores on several items, each of which records how positively or negatively a person feels about a statement. Margin of sampling error: a range of values within which the true population value is presumed to reside.