The directions for scoring a particular motor ability test instruct the examiner to "Give credit if the child holds his hands open most of the time." Because what constitutes "most of the time" is not specifically defined,directions such as these could result in lowered reliability estimates for
A) test-retest reliability.
B) alternate-form reliability.
C) inter-rater reliability.
D) parallel forms reliability.

Question

Quizplus · Accepted Answer

Inter-rater reliability refers to the degree of agreement among different examiners or raters in scoring the test. Since the instructions are not specifically defined, it is possible that different examiners may interpret "most of the time" differently, which could result in inconsistent scoring and lowered inter-rater reliability. Test-retest reliability refers to the consistency of scores over time, alternate-form reliability refers to the consistency of scores on different versions of the same test, and parallel forms reliability refers to the consistency of scores on equivalent forms of the same test. None of these types of reliability are directly affected by vague scoring instructions.

The Directions for Scoring a Particular Motor Ability Test Instruct