PsycTESTS can help you find an existing test that you can reuse in your own research. In doing so, you may want to evaluate the psychometric data that were reported by the original test developer.
Psychometrics is the branch of psychology that studies the quantification and measurement of mental attributes, behavior, and performance, as well as the design, analysis, and improvement of the tests and other instruments used in such measurement.
You will find three types of psychometrics included in a PsycTESTS record, when the information is provided by the original author and publisher of the test.
- Reliability describes the consistency of scores across contexts (e.g., different times, items, or raters), and provides an estimate of the amount of score variance that is due to true variance between subjects rather than to error.
- Validity is the degree to which a test or instrument is capable of measuring the stated construct, rather than some other trait or concept.
- Factor Analysis is a broad family of mathematical procedures that reduce a set of interrelations among stated factors to a smaller set of unobserved latent factors.