validity and reliability



content validity

assesses all the important aspects of a phenomenon

concurrent validity

yields the same results as other measures of the same behavior/thoughts/feelings

predictive validity

good at predicting how a person will think, act, or feel

construct validity

test measures what it's supposed to measure



test-retest reliability

results of a test are consistent over time

alternate form reliability

two version of the same test produce similar results

internal validity

different parts of the same test produce similar results

interrater reliability

different interviewers interviewing the same people should produce similar results