What is criterion validity?

Criterion validity, also known as criterion-related validity, assesses the effectiveness of a test, measure, or instrument in predicting or correlating with an external criterion: a non-test measure considered a gold standard or established indicator of the construct being assessed.

Here's a breakdown of key points about criterion validity:

  • Focuses on external outcomes: Unlike construct validity, which focuses on the underlying concept, criterion validity looks outward. It asks if the test predicts or relates to an established measure of the same construct or a relevant outcome.
  • Types of criterion validity: Criterion validity is further categorized into two main types:
    • Concurrent validity: This assesses the relationship between the test and the criterion variable at the same time. For example, comparing a new anxiety test score with a clinician's diagnosis of anxiety in the same individuals.
    • Predictive validity: This assesses the ability of the test to predict future performance on the criterion variable. For example, using an aptitude test to predict future academic success in a specific program.
  • Importance: High criterion validity increases confidence in the test's ability to accurately assess the construct in real-world settings. It helps bridge the gap between theoretical constructs and practical applications.

Imagine a new test designed to measure leadership potential. Criterion validity would involve comparing scores on this test with other established measures of leadership, like peer evaluations or performance reviews (concurrent validity), or even comparing test scores with future leadership success in real-world situations (predictive validity).

It's important to note that finding a perfect "gold standard" for the criterion can be challenging, and researchers often rely on multiple criteria to strengthen the evidence for validity. Additionally, criterion validity is context-dependent. A test might be valid for predicting performance in one specific context but not in another.

In conclusion, criterion validity complements other types of validity by linking the test or measure to real-world outcomes and establishing its practical relevance. It provides valuable insights into the effectiveness of the test in various contexts and strengthens the generalizability and usefulness of research findings.

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Understanding reliability and validity

Understanding reliability and validity

In short: reliability and validity Reliability refers to the consistency of a measurement. A reliable measurement is one that gives consistent results when repeated under the same or similar conditions. For example, if you take a thermometer and measure the temperature of a cup of water 5 times in a row, you should get the same or very close results....... read more
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30-01-2019

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