Internal Consistency of Academic Scores as an Index of the Validity of Course Exams: a study in Faculty of Pharmacy, Kerman University of Medical Sciences

AUTHORS

Payam Khazaeli 1 , * , Ashraf Adhami 1 , Ali-Akbar Haghdoost 1 , Marhamat Afzali 1

1 Iran

How to Cite: Khazaeli P , Adhami A, Haghdoost A, Afzali M. Internal Consistency of Academic Scores as an Index of the Validity of Course Exams: a study in Faculty of Pharmacy, Kerman University of Medical Sciences, Strides Dev Med Educ. 2012 ; 9(1):e59902.

ARTICLE INFORMATION

Strides in Development of Medical Education: 9 (1); e59902
Published Online: July 15, 2012
Article Type: Research Article
Received: August 09, 2017
Accepted: February 07, 2012

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Abstract

Background & Objectives: In order to improve the quality of teaching, attention to the students’ academic progress is important. In the present study the internal consistency of students' scores has been used as an index for the evaluation of the validity of course exams.
Methods: All scores of Pharmacy students graduated in 2007 and 2008 were collected from the of Kerman University of Medical Sciences. We computed the Pearson correlation coefficient (r) between course scores and grade point average (GPA). In addition, coefficients between the mean score in sub-groups of courses with GPA were computed.
Results: In most courses, the correlation coefficient between the course score and GPA was in the range of 0.4 to 0.6. The lowest correlation coefficients belonged to sport course (0.04) and thesis (0.33), while the highest were for theoretical biochemistry (0.78) and practical chemistry (0.76). The correlation coefficient of male students’ scores was 0.49 and that of female students was 0.40 that shows significant difference (p<0.01). In whole, the scores of basic courses showed higher correlation compared to general and special courses. The correlations in theoretical and practical courses were equal.
Conclusion: It seems that this convenient method for investigating the internal consistency of course scores can be used as an index for validity of corse scores. Significant difference in correlation coefficients among different courses requires special attention to some courses for investigating the probable testing errors, even though in most courses the coefficients were in the acceptable range.

Keywords

validation of assessment Examination Internal Consistency Quality of Education Pharmacy

© 2012, Medical Education Development Center. This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/) which permits copy and redistribute the material just in noncommercial usages, provided the original work is properly cited.

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