in testing theory, inferring from "the score on a sample of behaviors to the average of all the observations that could be in the domain" (Cronbach, 1984). Note: Generalizability is a theoretical alternative to a true-score concept of error of measurement. "True-score theory speaks as if error variance were all of one kind. Generalizability theory recognizes that there are several kinds of errors and alternative universes of generalization" (Cronbach, 1984). See also error of measurement.
Whether or not the study results can be applied to or are relevant for a larger population or group than the group being studied.
The extent to which research findings and conclusions from a study conducted on a sample population can be applied to the population at large.
the extent to which you can come to conclusions about one thing (often a population) based on information about another (often a sample).
Measurements (scores) derived from an assessment tool are considered generalizable if they can be shown to apply to more than the sample of cases or test questions used in a specific assessment.
The extent to which information about a program, project, or instructional material collected in one setting can be used to reach a valid judgment about how it will perform in other settings.
The extent to which the results of a study can be applied to the general population. In Vivo Literally “in glass.†Used to mean outside the living body and in an artificial environment. In Vitro Literally “in the living.†Used to mean in the living body of a plant or animal.
The extent to which the results of a study are able to be applied to the general population of people that is comparable to the population studied.
The ability to apply the results of a specific study to groups or situations beyond those actually studied.
the appropriateness of using results from one context or purpose in another context or for another purpose. See Context (Teaching), Situational Specificity, Transferability, Transportability, Validity, Validity Generalization Study.
See external validity and inference transferability. Back to the top
The extent to which the performances sampled by a set of assessment activities are representative of the broader domain being assessed. (McTighe & Ferrara)