The Impact of Scoring Method in Written Examinations on Test and Item Statistics
Keywords:
Written examinations, Scoring methods, Test Statistics, Item StatisticsAbstract
The purpose of this study is to compare the test and item statistics obtained from written examinations scored by two different methods – detailed and general scoring. The questions of written examinations are scored by detailed and general scoring in the study. No significant difference was found between the reliability of exam grades given by the two methods. However, a significant difference was found between the average grades given by the two different methods. It was observed that detailed scoring yielded higher test and item statistics than general scoring. A comparison of the difficulties of items in written exam questions scored by detailed and general scoring yielded significant differences in questions 2 and 5. However, difficulty values of the questions 1, 3, and 4 did not yield any significant difference. No significant difference was found between the item discrimination of the questions scored by
the two scoring methods, either. The conclusion that test and item statistics should be interpreted in addition to the scoring method of written examinations was made