Discriminant validity – describes the degree to which the operationalization is not similar to (diverges from) other operationalizations that it theoretically should not be similar to.Campbell and Fiske (1959) introduced the concept of discriminant validity within their discussion on evaluating test validity. They stressed the importance of using both discriminant and convergent validation techniques when […]
arnold on Sep 16, 2008
Convergent validity – is the degree to which an operation is similar to (converges on) other operations that it theoretically should also be similar to. For instance, to show the convergent validity of a test of mathematics skills, the scores on the test can be correlated with scores on other tests that are also designed […]
arnold on Sep 16, 2008
Sure.1) Knowledge2) Comprehension3) Application4) Analysis5) Synthesis6) Evaluation
arnold on Sep 16, 2008
Most psychological constructs are of interest primarily because of the degree to which individuals differ in the amount to that attribute. When you think of the construct of intelligence you are interested in a test to show how much individuals differ. To develop a test that will differentiate a construct involves the major behavior components […]
arnold on Sep 16, 2008
1) Content Analysis2) Review of Research3) Critical incidents4) Direct Observations5) Expert judgements6) Instruction objectives
arnold on Sep 16, 2008
When a response pattern is consistently logical. If its logically inconsistent it is called an error. The greater the number of subjects whose responses conform to the allowable patterns, the more certain we can be that these items form on ordered scale. This is determined with the coefficient of reproducibility. total number of errorsc = […]
arnold on Sep 16, 2008