the extent to which the researcher is measuring what they intend to measure.
External Validity
The extent to which the findings from the study can be generalised to other environments, people and times.
ecological validity
results from the study are accurate, done in real world environments. High mundane realism is when behaviour takes place in real life environment.
temporal validity
-results from a study are accurate overtime, still to this day.
-E.g. Asch's line study has low temporal validity as conformity rates were high when doing the study. It was called a child of it's time as people were more likely to conform.
population validity
-Results from the study can be generalised to other people. Bias sample lacks population validity.
-E.g. Milgram and Asch's study just had men taking part so can only be generalised to men not women. A stratified sample should be used.
