Measurement: Instrument Validity & Reliability

These flashcards cover key terms and definitions related to instrument validity and reliability in research methods.

Validity

Refers to the accuracy of an instrument in measuring what it is supposed to measure.

Reliability

Refers to the consistency or stability of an instrument in measuring whatever it measures.

Construct Validity

Extent to which an instrument measures the construct it is supposed to measure, testing the theoretical framework.

Criterion Validity

Extent to which a new instrument correlates with an established test examining a similar theoretical construct.

Content Validity

Extent to which an instrument adequately samples relevant material of the construct.

Face Validity

Extent to which an instrument is easy for study participants to understand and complete.

Parallel Forms Reliability

Extent to which different forms of the same instrument produce the same result.

Internal Consistency Reliability

Extent of intercorrelations between items of the same construct, statistically measured.

Test-Retest Reliability

Extent of stability of the same measurement over time.

Rater Reliability

Extent of consistent measurement within a rater or between raters.