Describe the Key Differences Between Probability and Nonprobability Sampling

question 9

Essay

Describe the key differences between probability and nonprobability sampling. What defines a probability sample? For what purposes and under what conditions is it appropriate to use each of these sampling strategies? What kind of inferences are possible with each?

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Definitions:

Informant Report

Information provided by a knowledgeable third party about another individual’s behavior, characteristics, or symptoms, often used in psychological assessments.

Face Validity

The extent to which a test appears to measure what it is supposed to measure, based on a superficial assessment, rather than in-depth analysis.

Aggregation

The process of combining multiple pieces of data, typically to provide a summary or to analyze trends.

Psychological Assessments

The process of administering and interpreting psychological tests to measure aspects of an individual's mental abilities, behaviors, and personality.