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Table 11.1 Sample Test Statistics Number of items 100 Number of examinees 92 Mean 75.4 Median 77 Low score 52 High score 93 Alpha 0.754
Table 11.1 Sample Test Statistics | |
---|---|
Number of items | 100 |
Number of examinees | 92 |
Mean | 75.4 |
Median | 77 |
Low score | 52 |
High score | 93 |
Alpha | 0.754 |
Standard deviation | 7.7 |
Standard error of measurement (SEM) | 3.8 |
Mean p value | 0.754 |
Mean point biserial index (PBI) | 0.36 |
what is reliability and is the test based on information on the chart above reliable?
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