Population, Frame, and Sample

Research Methods — Week 7. Key concepts from the comprehensive notes.

What is a population?

The entire group about which a researcher wants to draw conclusions.

What is a sampling frame?

The accessible list or source from which units may be selected.

What is a sample?

The subset of units selected to provide data about the population.

Why can a sampling frame limit generalization?

People missing from the frame cannot be selected, so important parts of the population may be excluded.

What factors influence sampling choices?

Desired generalizability, time, cost, practicality, and the research question.