random sample, sample, survey, questionnaires, unscientific, random, nonscientific, analysis, subsample, census, enumeration, nonrepresentative, analyzed, subset, study, nonrandom, conducted, noninstitutionalized, tabulation, extrapolation, retests, semiquantitative, culled, systematic, poll, winnows, responses, nationwide, resurvey, correlational, interviews, trawl, checklist, polysomnogram, regression analysis, numbering, profiling, pretests, evaluation, unselected, evaluators, assessment, handful, recheck, enation, collated, frisk, unduplicated, exhaustive, empirically, enumerator, methodology, spectrographic analysis, representatively, preponderance, generalizable, pollsters, conduced, stratified, subjective, judging, validated, cursory, testing, canvassed, select, examination, explosive trace detection, scan, olfactometer, testers, histopathologic, nonexpert, ethnographic, quantitative analysis, undercount, statistical, immunochemical, comparison, snapshot, serological, alphabetically, inspection, surveyors, nels, unrepresentative, experiment, straw poll, verification, grab sample, perusal, confirmatory, dipstick, posttest, idis, ibt, antemortem, psychometric, overcount, duplicates, multivariate, polysomnography

sampling