10.12.2012 Views

Domain Testing: Divide and Conquer - Testing Education

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100 (% scores) for the sake of uniformity <strong>and</strong> easier data analysis. On an average,<br />

the percentage increase in the scores from pretest to posttest was 56.82%, a good<br />

improvement. The st<strong>and</strong>ard deviation of the final pretest score was 11.26. It<br />

decreased to 6.16 for the posttest, which means that the students’ performance was<br />

more uniform compared to that in the pretest.<br />

Chart 6.01, Chart 6.02 <strong>and</strong> Chart 6.03 graphically represent the comparison of final<br />

paper-based pretest <strong>and</strong> posttest percentage scores, the percentage increases <strong>and</strong> the<br />

averages of the final pretest <strong>and</strong> posttest percentage scores, <strong>and</strong> the average<br />

percentage increase in the scores from pretest to posttest, respectively.<br />

96

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