Solutions Statistics

Solution) (10) Calculate the parallel forms reliability for scores of a small sample of students on a profe

Question: 4. (10) Calculate the parallel forms reliability for scores of a small sample of students on a professor-composed test for tax preparation. Scores can range from 0 to 100. Twenty students took both the A form and then the next day the B form.

89 60 80 72 85 79 83 65 88 92 71 68 96 93 87 82 90 98 100 76
85 65 78 75 80 82 85 60 86 95 76 70 92 95 85 89 90 100 9 8 80

(a) (5) Use Excel’s CORREL program to compute the reliability coefficient. Paste your printout here, or attach it to this assignment.

(b) (5) Using the information in Chapter 16 and in Chapter 5, do you think the professor’s test is reliable? Explain.

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