University of Phoenix Material
Reliability and Validity Matrix
For each of the tests of reliability and validity listed on the matrix, prepare a 50- to 100-word description of the test’s application. Describe what conditions these reliability types would be used for as well as when they would be inappropriate. Then, for each test, prepare a 50- to 100-word description of the strengths and a 50- to 100-word description of the weaknesses.
Test of reliability | Application and appropriateness | Advantages | Disadvantages |
Internal consistency | Internal consistency is used to make sure that multiple constructs that are measuring a variable produce identical results. An ...view middle of the document...
The time in between the two tests is important; the more time that is put out, the more reliable the construct. An example of test and retest is testing a scale with a 10 pound bag one day and then one week after. | The advantage of test or retest reliability is the general freedom in determining the scope of time. The time in between the test and retest can be ranging from a day to several months; the time is significant in the results of the test. | The disadvantage of the reliability test is that it can only be applied to so many things. Unfortunately, many factors change that do not make the test “the same” after a period of time. The test works well with things like a scale but do not work well with real life people because they are always changing. |
Parallel and alternate forms | Parallel forms reliability is using two parallel forms (tests, questionnaires, etc.) and administering each form to the same sample of people. This form of reliability is similar to the test or retest reliability; however, the two forms being used aren’t completely identical, but rather are a half-sample from a pool of questions that are supposed to address the same idea. | The advantage of this test is that it makes sure the test is robust in the sense that it is able to measure the same construct regardless of the sample. Since the two forms are not the same, it makes sure the test is even stronger. | Parallel forms reliability does not ensure that the two forms are measuring the target variable accurately. It just makes sure the two measures are precise. |
Test of validity | Application and appropriateness | Strengths | Weaknesses |
Face validity | Face validity is a test of validity to make sure that a test is measuring the construct accurately. The “face value” of the test is used to make sure that its results are valid in the measurement of the variable. For example, on a measure of commute time, the test would be having face validity if it is strictly measuring the time it takes for a person to get to work. | The strengths of a face validity test is that it is a basic test to make sure the test is doing its most basic job. If the face validity test...