Internal validity refers to the extent to which the changes in the dependent variable are caused by the manipulation of the independent variable as opposed to confounding variables
what is external validity?
the extent to which the findings can be generalised beyond the investigation
what is ecological validity?
a type of external validity referring to whether findings can be generalised from a study to other settings
wha is temporal validity?
a type of external validity which refers to the extent in which findings can be generalised to other historical times or eras
what is population validity?
a type of external validity referring to the extent to which findings from a study can be generalized to the larger population.
