Published Paper Details:

The purpose of the study was to construct a valid and reliable Achievement Test in Organic Chemistry (ATOC) for the students of senior secondary school affiliated to CBSE. This study conducted to construct and standardize an achievement test in organic chemistry for class XI-Standard students to measure their achievement. The achievement test has been constructed on selected unit of Chemistry from Class XI CBSE Text Book issued by NCERT. The name of chapters/units considered for this test was Organic Chemistry_ Basic Principles and Hydrocarbon. The test was prepared on the basis of the blue print of the achievement test focusing the instructional objectives. After the items were written and chemical structure was formulated, the researcher consulted with the subject expert for checking the item and to verify whether the items are up to the mark and as per instructional objectives to measure the level of achievement. Initially the researcher framed Seventy Six (76) items on Organic Chemistry. Individual try-out and expert's opinion have been done on first draft of ATOC. Discussions have been done with the subject experts and the test was modified accordingly. Total seventeen items were removed from the first draft and the second draft consisted of 59 items. The second draft with Fifty Nine (59) items was administered on 68 students. Then the Item Difficulty Value (D.V) and Item Discrimination Index (D.I) were calculated. On the basis of difficulty value and discrimination index the achievement test was again modified and nine items were dropped from second draft. The final draft of Achievement test in Organic Chemistry (ATOC) contained 50 items. The reliability of final draft of ATOC was measured and validity of ATOC was also checked.