Sampling Methods Overview

Front

Simple Random Sampling

Back

Equal chance for all members

Front

Systematic Sampling

Back

Every nth member is chosen

Front

Stratified Sampling

Back

Divide into strata; sample each.

Front

Cluster Sampling

Back

Randomly select entire groups.

Front

Convenience Sampling

Back

Easiest members to reach

Front

Judgmental Sampling

Back

Based on the expert's choice

Front

Snowball Sampling

Back

Participants recruit others.

Front

Quota Sampling

Back

Fixed number from each group

Front

Sampling Bias

Back

Non-representative sample

Front

Sample Size

Back

Number of Observations