External validity is the extent to which findings can be generalized beyond the specific sample, setting, or context.
A study with high internal validity may have low external validity if it uses an unrepresentative sample or restrictive conditions that limit generalization.
Internal validity focuses on whether the observed relationship between two variables was caused by one variable influencing another, while external validity considers the degree to which the results can be applied outside the immediate situation.
What is a test re test (^ex reliability)
involves testing and retesting participants on the same test and comparing their scores.
