| Sumario: | A package of 16 menu-driven programs for selecting, assigning, and evaluating samples in survey, correlational, or experimental research is described. The functions of the 16 programs are selecting and assigning individuals or sampled elements to groups by employing simple randomization, stratification, clustering, or counterbalancing; estimating confidence intervals and power from sample statistics and hypothesized population parameters; computing required sample sizes; matching observational elements in samples and assigning them to specified groups; and estimating the effects of nonresponse on research findings. The programs are written in BASICA for DOS-based microcomputers.
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