External validity refers to the extent to which the results of a study can be generalized beyond the specific context of the study to other populations, settings, times, and variables.| Simply Psychology
Sampling methods in psychology refer to strategies used to select a subset of individuals (a sample) from a larger population, to study and draw inferences about the entire population. Common methods include random sampling, stratified sampling, cluster sampling, and convenience sampling. Proper sampling ensures representative, generalizable, and valid research results.| Simply Psychology