Examlex
A teacher who uses flexible grouping should seldom assess students' performance.
Sampling Error
The error that occurs due to differences between the sample selected for a study and the overall population, which can affect the generalizability of results.
Sampling Judgment
A method of selecting participants or subjects for a study based on the researcher's knowledge and judgement.
Pilot A Survey
A preliminary study conducted to evaluate the feasibility, time, cost, risk, and adverse effects of a research project.
Internet Sampling Frames
Online lists or databases from which a researcher can select participants for a study, ensuring the sample represents a larger population.
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