This article describes a set of 16 menu-driven programs, written in BASICA for DOS-based microcomputers, for selecting, assigning, and evaluating samples in survey, correlational, or experimental research. Programs for selecting simple random, stratified random, and cluster samples are described. Procedures for matching samples, testing for independence, and estimating confidence intervals and power for procedures involving proportions and means are included. The problems of sample size, nonresponse or missing values, and order effects are also considered.
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