Eligibility: To be eligible for CHAMPVA, an individual cannot be eligible for TRICARE (the medical program for civilian dependents provided by DoD) and must be one of the following: 1  The spouse or child of a Veteran whom VA has rated permanently and totally disabled due to a service-connected disability. The surviving spouse or child of a Veteran who died from a VA- rated service-connected disability, or who, at the time of death, was rated permanently and totally disabled. The surviving spouse or child of a Veteran who died on active duty service and in the line of duty, not due to misconduct.
Ethnic Validity: Definition and Model Ethnic vah'dity is the degree to which problem identification and problem solving are acceptable to the client in respect to the client's belief and value systems, as these are associated with the client's ethnic~cultural group.1985) and Tyler, Brome, and Williams (1991). While both of these models are instructive and have similarities to the model of ethnic validity proposed earlier, there are important differences in these models and the problem-solving framework of school psychology practice. Savage and Adair.
External validity is related to generalizing. That's the major thing you need to keep in mind. Recall that validity refers to the approximate truth of propositions, inferences, or conclusions. So, external validity refers to the approximate truth of conclusions the involve generalizations. Put in more pedestrian terms, external validity is the degree to which the conclusions in your study would hold for other persons in other places and at other times. In science there are two major approaches to how we provide evidence for a generalization. I'll call the first approach the Sampling Model.