judgment sample

Results obtained from a judgment sample are subject to some degree of bias, due to the frame and population not being identical.

Subsets are chosen and then either convenience or judgment sampling is used to choose people from each subset.

Judgment sample is a type of nonrandom sample, which is selected based on the opinion of an expert.

Some examples of nonrandom samples are convenience samples, judgment samples, purposive samples, quota samples, snowball samples, and quadrature nodes in quasi-Monte Carlo methods.