validitys

Validitys is a term used in some interdisciplinary and methodological writings to refer to multiple facets of validity that can affect the trustworthiness of claims, measurements, and inferences. Unlike the conventional use of validity as a single property, validitys acknowledges that a claim may meet some validity criteria while falling short on others.

Common facets include logical validity (whether an argument preserves truth from premises to conclusion), empirical validity (consistency with observed data), content validity (extent to which a measure covers the intended domain), construct validity (whether a measure embodies the theoretical construct), and criterion validity (how well a measure correlates with a relevant criterion, including predictive and concurrent validity). In experimental and applied research, internal validity (control of confounding) and external validity (generalizability) are also discussed, along with ecological validity (real-world applicability).

Usage of validitys appears in study design, instrument development, and evaluative reasoning, where researchers assess multiple validitys and report them separately to provide a nuanced interpretation. In argumentation and philosophy, validitys encourages scrutiny of both inferential structure and evidentiary support, not just a single overall verdict of validity.

Origins and reception: the term is not widely standardized and is mainly found in open-ended methodological discussions or theoretical essays. Critics argue that it can introduce ambiguity if not clearly defined, so practitioners are advised to specify which validitys are being evaluated and how they are measured.

See also: validity, reliability, measurement validity, construct validity, internal validity, external validity, ecological validity, content validity, criterion validity.