Content validity measures Psychology Essay Research

Content validity measures whether a particular test is a representative of all aspects of a given construct. Indeed, it is used when no parts of a particular subject is to be left out. The evidence of a content validity is collected by ensuring that no aspect of the subject is omitted. For example, if a mathematics teacher wants to develop an algebra test at the end of a semester, he or she should ensure that all contents of algebra are covered. If something is left out or added, the results obtained from algebra tests would not be no longer valid.
Construct validity is used to evaluate whether a specific measurement tool represents the thing that the researcher is interested to measure. This test is used when researchers have a concept that cannot be observed directly, but indicators associated with it can be measured. The...