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15 Δεκ 2023 · In psychology research, validity refers to the extent to which a test or measurement tool accurately measures what it's intended to measure. It ensures that the research findings are genuine and not due to extraneous factors.
Validity in research, statistics, psychology, and testing evaluates how well test scores reflect what they’re supposed to measure. Does the instrument measure what it claims to measure? Do the measurements reflect the underlying reality? Or do they quantify something else?
Finding the truth in psychological research is a challenge, and seemingly insurmountable difficulties are often encountered. Nonetheless, persistent and diligent efforts using strategies developed by generations of methodologists should lead to scientific advancement.
6 Σεπ 2019 · Validity tells you how accurately a method measures something. If a method measures what it claims to measure, and the results closely correspond to real-world values, then it can be considered valid. There are four main types of validity: Construct validity: Does the test measure the concept that it’s intended to measure?
12 Ιαν 2023 · The concept of validity is central to psychological assessment, providing the theoretical and methodological principles for the development and use of measurement instruments. A consensus has emerged that validity does not reside in the measuring instrument per se, but rather in the inferences drawn from the scores.
15 Μαρ 2023 · There are four types of validity: content validity, criterion-related validity, construct validity, and face validity. This article discusses what each of these four types of validity is and how they are used in psychological tests.
Modern validity theory defines construct validity as the overarching concern of validity research, subsuming all other types of validity evidence (Messick Reference Messick 1998). Key to construct validity are the theoretical ideas behind the concept under consideration.
