There is a distinction that one learns about on the first day of a course in psychological research methods. It is the difference between internal and external validity. Internal validity is ...

Although there is often a tradeoff between experimental control and ecological validity, there are good arguments that the study of memory for chess positions allows a high level of both. For example, ...

Janine Shepherd, Melody Oliver, Grant Schofield, Convergent Validity and Test–Retest Reliability of the Authentic Happiness Inventory in Working Adults, Social Indicators Research, Vol. 124, No. 3 ...

The intersection of educational technology and content validity in health education underscores the necessity for rigorous instrument development and evaluation to support effective learning and ...