Exhibit 9-8: The following data were obtained when two forms of a criterion-referenced test were given to a group of 10 students.There were 40 items on each form and a student had to receive75 percent correct on each form.
$ \begin{array}{lll}\text { Examinee } & \text { Form 1 } & \text { Form 2 } \ 1 & 30 & 30 \ 2 & 28 & 29 \ 3 & 34 & 37 \ 4 & 38 & 39 \ 5 & 32 & 40 \ 6 & 26 & 28 \ 7 & 28 & 35 \ 8 & 35 & 36 \ 9 & 38 & 29 \ 10 & 36 & 36\end{array} $
-Refer to Exhibit 9-8.Express the score reliability of this test in terms of the simple agreement coefficient.
A) .40
B) .55
C) .75
D) .80
E) .82

Question

Exhibit 9-8: The following data were obtained when two forms of a criterion-referenced test were given to a group of 10 students.There were 40 items on each form and a student had to receive75 percent correct on each form.
 $ \begin{array}{lll}\text { Examinee } & \text { Form 1 } & \text { Form 2 } \ 1 & 30 & 30 \ 2 & 28 & 29 \ 3 & 34 & 37 \ 4 & 38 & 39 \ 5 & 32 & 40 \ 6 & 26 & 28 \ 7 & 28 & 35 \ 8 & 35 & 36 \ 9 & 38 & 29 \ 10 & 36 & 36\end{array} $
-Refer to Exhibit 9-8.Express the score reliability of this test in terms of the simple agreement coefficient.
A) .40
B) .55
C) .75
D) .80
E) .82

Quizplus · Accepted Answer

The simple agreement coefficient is calculated by dividing the number of students who passed or failed both forms by the total number of students. In this case, 75% of 40 items is 30 items. Students who scored 30 or more on both forms or less than 30 on both forms are considered in agreement. By examining the data: 1, 3, 4, 5, 8, 10 passed both; 6 failed both. That's 7 out of 10 students in agreement, so the coefficient is 7/10 = 0.70. However, none of the options exactly match this calculation, suggesting a possible misunderstanding in the calculation or the interpretation of the options provided. Given the options, none directly match the calculated value, indicating a need for reevaluation based on the provided choices.

Exhibit 9-8: the Following Data Were Obtained When Two Forms