ddroy's diary

Differential Validity indicates differential pattern of predictor criterion relation across sub-populations. Current study examined differential validity of computer programming r elated reasoning abilities. Items of five subtests were constructed earlier to assess five verbal abilities as similarities, anagram, syllogistic reasoning, data sufficiency and coding. In the 2012-13 session aims are to examine (a) psychometric properties of each subtest and to examine (b) differential pattern of reasoning across cross sections of students by sex, age, grade, community, religion, medium of learning. Data were collected from 622 boys and 372 girls of grades 8 th to 10 th of different communities by religion and caste. Test battery includes 60- items with four or five options.  Test items for lower order reasoning possessed moderate level of difficulty indices ranged from 46.86 to 64.42. And tests for higher order reasoning possessed high difficulty level. Almost 70% of total students perf