Construct validity concerns how well a set of indicators represent or reflect a concept that is not directly measurable.

the validity of applying the conclusions of a scientific study outside the context of that study.

the extent to which a piece of evidence supports a claim about cause and effect, within the context of a particular study.

In psychometrics, predictive validity is the extent to which a score on a scale or test predicts scores on some criterion measure.

In psychometrics, content validity (also known as logical validity) refers to the extent to which a measure represents all facets of a given construct.

Appears effective at first glance.

a type of evidence that can be gathered to defend the use of a test for predicting other outcomes.

In the behavioral sciences, ecological validity is often used to refer to the judgment of whether a given study's variables and conclusions (often collected in lab) are sufficiently relevant to its population (e.g. the "real world" context).

the extent to which a test (such as a chemical, physical, or scholastic test) accurately measures what it is supposed to measure.

Correct conclusion from given premises.

Accurate and appropriate within context.