Reliability Analysis: Parallel And Face Validity

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Register to read the introduction… If the measurements were due to variance other than error variance there would be a problem. If the reliability of a test is lower than the real measurement it may be because the construct may varies.

Parallel and alternate forms—The parallel and the alternative forms of test reliability utilize multiple instances of the same test items at two different time with the same participants (Cohen & Swerdlik, 2010). These kinds of test of reliability measurement could be proper when a person is measuring traits over a lengthy period of time, but would not be proper if a person was to measure one’s emotional state.

Strengths---The parallel and alternate form measure the reliability of the core construct during variances of the same test items. Reliability will go up when equal scores are discovered on multiple form of the same test. Internal consistency estimate of reliability can analyze the reliability of a test with the test taker going through several
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Face validity is a judgment concerning how relevant the test items appear to be (Cohen & Swerdlik, 2010). Face Validity is parameters used to evaluate the worth of a test also discover how the test performed. Face validity is most appropriate when test takers are confidence that the test is measuring what it is suppose to measure.

Strengths—The strength of face validity is if the test taker has assurance in the validity of the test, than he or she is likely to take the test, and the test user will administer the test. If the test taker or the test user is not sure of the validity there is a strong possibility that the test will not be taken and the test user will not administer the test.

Weaknesses—A test that lacks face validity may still be relevant and useful. If it is not perceived as such by test-takers, a parent, legislators, and others, than negative consequences may result. These consequences may range from a poor attitude on the part of the test-taker to lawsuits filed by disgruntled parties against a test user and test publishers (Cohen & Swerdlik,

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