The items of the test should include every relevant characteristic of the whole content area and objectives in right proportion.īefore constructing the test, the test maker prepares a two-way table of content and objectives, popularly known as “Specification Table”. This way, content validity refers to the extent to which a test contains items representing the behaviour that we are going to measure. It gives idea of subject matter or change in behaviour. the test items must duly cover all the content and behavioural areas of the trait to be measured. The extent to which the items of a test are true representative of the whole content and the objectives of the teaching is called the content validity of the test.Ĭontent validity is estimated by evaluating the relevance of the test items i.e. It is also called as Rational Validity or Logical Validity or Curricular Validity or Internal Validity or Intrinsic Validity.Ĭontent validity refers to the degree or extent to which a test consists items representing the behaviours that the test maker wants to measure. Content Validity:Ĭontent Validity a process of matching the test items with the instructional objectives.Ĭontent validity is the most important criterion for the usefulness of a test, especially of an achievement test. This type of validity is not adequate as it operates at the facial level and hence may be used as a last resort. When a test is to be constructed quickly or when there is an urgent need of a test and there is no time or scope to determine the validity by other efficient methods, face validity can be determined. Moreover, this method helps a test maker to revise the test items to suit to the purpose. Once the test is validated at face, we may proceed further to compute validity coefficient.
When one goes through the items and feels that all the items appear to measure the skill in addition, then it can be said that the test is validated by face.Īlthough it is not an efficient method of assessing the validity of a test and as such it is not usually used still then it can be used as a first step in validating the test. The content of the test should not obviously appear to be inappropriate, irrelevant.įor example, a test to measure “Skill in addition” should contain only items on addition. Thus, face validity refers not to what the test measures, but what the test ‘appears to measure’. If a test measures what the test author desires to measure, we say that the test has face validity. Face validity refers to whether a test appears to be valid or not i.e., from external appearance whether the items appear to measure the required aspect or not.
0 kommentar(er)
