• Dr. Azkia Khan

In the present study a standardized achievement test was constructed to measure achievement in physical science of class IX students. The initial draft of the test consisted of 74 items from 4 chapters in Physical Science of class IX which were as follows “ Matter in our Surroundings” and “ Is Matter Around us Pure” from Chemistry and “ Motion” and “ Forces and Laws of Motion” from Physics. For item analysis, the difficulty value and discrimination power of each item was calculated and items that have difficulty value of less than 0.15 and more than 0.85 were eliminated and the final form of the test consist of 40 items. The reliability of test was calculated by method of Cronbach’s Alpha and found to be 0.91. Validity of the test was determined by using content validity method.

Achievement Test, construction, reliability, validity, physical science

" Construction and Standardization of an Achievement Test in Physical Science", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 3, page no.c823-c830, March-2023, Available :http://www.jetir.org/papers/JETIR2303296.pdf

" Construction and Standardization of an Achievement Test in Physical Science", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 3, page no. ppc823-c830, March-2023, Available at : http://www.jetir.org/papers/JETIR2303296.pdf