Читать книгу The Pocket Guide to Critical Appraisal - Iain K. Crombie - Страница 14

Use of the term survey in a paper should identify the method, but sometimes the term is used for what is really a cohort study. Cross‐sectional is a helpful term because it is seldom used with any other research method. Prevalence, the frequency of something in a sample, also suggests that a study is a survey. The terms sample and random sample are unhelpful because they often appear in the description of the other research designs. The terms simple, cluster, or systematic can be used with the word sampling to describe different ways of drawing a sample, e.g. cluster sampling. These terms are seldom used with the other research designs. The phrase stratified sampling is also used in surveys, but the word stratified can also be used in randomised controlled trials (RCTs).