Multi-institutional Analysis of Student and Program Variables as Predictors of Performance on the NAPLEX

Objective. Understanding student characteristics and risk factors for performance on the North American Pharmacist Licensure Examination (NAPLEX) may help schools and colleges of pharmacy target limited resources. This study aimed to evaluate two sets of Doctor of Pharmacy (PharmD) student variables for their effect on NAPLEX performance.Methods. Data were collected from five schools and colleges of pharmacy over three years (2016-2018). Relationships between variables were first examined with bivariate correlations, and then by a series of multiple regressions using a structural equation modeling approach. Two sets of analyses were conducted using the outcome variable of NAPLEX scaled score. The first set examined variables at admission to the program while the second set examined performance variables during the PharmD program.Results. Students' score on the Pharmacy Curriculum Outcomes Assessment (PCOA) had the highest bivariate correlation with their NAPLEX score, with area 4 and area 2 having the strongest correlations. The correlations of Pharmacy College Admission Test (PCAT) subtest scores with NAPLEX scores were significant but smaller. Admissions variables of incoming science grade point average (GPA) and PCAT area scores were significant predictors of performance on the NAPLEX, but these variables were entered in separate models as they explained the same variance (each approximately 15%). The PCOA area scores and GPA before starting advanced pharmacy practice experiences (pre-APPE GPA) were significant predictors and explained about 25% of the variance in NAPLEX scores.Conclusion Pharmacy students' PCOA area scores and pre-APPE GPA were significant predictors of their NAPLEX scores. Information in this study can be used by pharmacy schools to efficiently target support services to students for enhanced NAPLEX performance.