Definition Population is divided into homogeneous, mutually exclusive groups called strata, and then independent samples are selected from each stratum. Any of the sampling methods can be used to samp [..]

A sampling method that guarantees that subpopulations of interest are represented in the sample.Synonyms: representative sampling

The act of drawing a stratified sample.

Definition The process of dividing a population into smaller subsets for sampling purposes. By splitting up the population in this manner, each section has an increased likelihood of been selecting fo [..]

A statistical method for testing different theorized models, including the "structures" of relationships among the observed indicators and their underlying concepts.

A type of probability sample where the units in a population of interest are divided into mutually exclusive and collectively exhaustive strata and a (proportionate or disproportionate) random sample [..]

A sampling procedure in which the population is divided into homogeneous subgroups or strata and the selection of samples is done independently in each stratum.

Of a population which can be divided into different subpopulations (called strata), sampling carried out in such a way that specific proportions of the sample are drawn from the different strata (ISO, [..]

A nonrandom sampling scheme whereby the population is first divided into several nonoverlapping, exhaustive strata, and then random samples are taken from within each stratum.

A sampling technique based on the partitioning of the total population (or area) in more homogeneous sub-populations (strata) that can improve precision. Sometimes, and confusingly for samplers, the t [..]