{'fraction_non_alphanumeric': 0.035509736540664374, 'fraction_numerical': 0.030927835051546393, 'mean_word_length': 4.905405405405405, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 2, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
The levels of difficulty and discrimination indices and relationship between them in four-response type multiple choice questions of pharmacology summative tests of Year II M.B.B.S students

Results: Mean difficulty index scores of the individual summative tests were in the range of 47.17% to 58.08%. Twenty nine percent of total test items crossed the difficulty index of 70% indicating that those items were easy for the students. Seventy eight percent of the test items showed acceptable (> 0.2) discrimination index. Forty six percent of the test items showed excellent discrimination index. Discrimination index correlated poorly with difficulty index (r=0.11). The correlation is insignificant at 5% (p>0.10). Conclusion: A consistent level of test difficulty and discrimination indices was not maintained from 2008 to 2012 in all the ten summative type A MCQ tests.