The Educational Testing Service (ETS) have devised a new testing tool to be used

Question

The Educational Testing Service (ETS) have devised a new testing tool to be used in conjunction with the GRE that is designed to assess other skills important in predicting academic success in graduate school, such as motivation and persistence. The test quantifies motivation and persistence on a T-distribution (M = 50, SD = 10). However, before launching a large-scale study to assess the applicability of this test across multiple sites in the country, they have decided to hire you to conduct an initial pilot study (a smaller scale study that will not cost as much). The pilot study will contain a stratified random sample of 1,000 students (500 current graduate students and 500 undergraduate seniors who are applying to graduate school).

Discuss the process of how you would assess temporal stability, internal consistency, and the trinitarian model for this test.

Explanation / Answer

Answer to the question)
Temporal stability: The same set of students can be admistered the test at two different times to ensure that there is consistency in their scores, and there is no other situation base dor time based influence on th scores obtained by the students

uThe test can be conducted in a hall in shopping mall and the test can again be admistered in college classroom

The test can be assessed on any of the working days, and then it can be administered on any of the holidays

.

Internal consistency: This can be analyzed by checking the dispersion measures for the obtained set of scores. If the coefficient of variation is less, this implies that the scores obtained are more or less consistent and hence assure good internal consistency

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