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| Research Problems | 2 |
| Comparative Analysis | 1 |
| Discriminant Analysis | 1 |
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| Statistical Bias | 1 |
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Peer reviewedWampold, Bruce E.; And Others – Journal of Consulting and Clinical Psychology, 1990
Describes hypothesis validity as extent to which research results reflect theoretically derived predictions about relations between or among constructs. Discusses role of hypotheses in theory testing. Presents four threats to hypothesis validity: (1) inconsequential research hypotheses; (2) ambiguous research hypotheses; (3) noncongruence of…
Descriptors: Hypothesis Testing, Research Problems, Validity
Blumstein, Alfred; Cohen, Jacqueline – Evaluation Quarterly, 1979
Evaluations involving nonrandom assignment to treatment or control groups are vulnerable to an accidental or intentional confounding of a selection effect with the treatment effect. Two techniques, discriminant analysis and base expectancy analysis, permit separate estimation of the selection and treatment effects in the final results. (Author/CTM)
Descriptors: Comparative Analysis, Discriminant Analysis, Hypothesis Testing, Research Design
