Comparisons of the predictive values of admission criteria for academic achievement among undergraduate students of health and non-health science professions: a longitudinal cohort study.

Objective: The main objective of this study was to compare the predictive value of admission criteria for students' grade point averages (GPAs) over a 3-year period for a cohort of students enrolled in health and non-health science professions during the 2012-2013 academic year at Imam Abdulrahman Bin Faisal University (IAU).

Materials and methods: This longitudinal, retrospective cohort study was conducted at eight colleges (four health and four non-health colleges) in IAU between December 2017 and February 2018. The high school grades, aptitude test scores, achievement test scores, and GPA scores over a 3-year period for students admitted during the 2012-2013 academic year at health and non-health colleges at IAU were used. The data were analyzed using descriptive and inferential statistics.

Results: Positive, significant correlations ( P <0.01) were found between the three admission criteria and the annual GPA scores (r ranged from 0.192 to 0.499 and from 0.359 to 0.588) for both the health and non-health colleges. High school grades were the most significant predictor of annual GPAs (β=0.340, P <0.01 and β=0.374, P <0.01), followed by achievement test scores in both health and non-health fields of study, respectively. Aptitude test scores were not good predictors of GPAs for the health and non-health colleges.

Conclusion: High school grades are the most important predictor of student GPAs at health and non-health colleges. Changing the weighting criteria in our institution to place more emphasis on high school grades, as our findings indicate, should be considered during the admission process.