Stratified Sampling

Definition

Stratified sampling is a method of selecting a sample from a population in which the population is divided into subgroups or strata, and then a proportionate number of individuals are randomly selected from each stratum. It ensures that the sample represents various characteristics or attributes of the population.

Related terms

Random Sampling: Random sampling is when every member of a population has an equal chance of being chosen for the sample.

Population: A population refers to all the individuals or elements being studied in a particular research study.

Sampling Bias: Sampling bias occurs when certain members of a population are more likely to be included in a sample than others, leading to results that may not accurately represent the entire population.