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Relationships between the Comprehensive Osteopathic Medical Achievement Test (COMAT) subject examinations and the COMLEX-USA Level 2-Cognitive Evaluation

Journal: The Journal of the American Osteopathic Association Date: 2014/09, 114(9):Pages: 714-21. doi: Subito , type of study: retrospective study

Free full text   (https://www.degruyter.com/document/doi/10.7556/jaoa.2014.140/html?lang=de)

Keywords:

educational measurement [93]
osteopathic medicine [1540]
COMLEX [8]
USA [1086]
retrospective study [213]

Abstract:

CONTEXT: The relationship between the Comprehensive Osteopathic Medical Achievement Test (COMAT) series of subject examinations and the Comprehensive Osteopathic Medical Licensing Examination-USA Level 2-Cognitive Evaluation (COMLEX-USA Level 2-CE) has not been thoroughly examined. OBJECTIVE: To investigate the factors associated with performance on COMAT subject examinations and how COMAT scores correlate with COMLEX-USA Level 2-CE scores. METHODS: We examined scores of participants from 2 COMAT examination cycles in 2011 and 2012. According to surveys, most schools used COMAT scores in clerkship and clinical rotation evaluation, which were classified as being used for “high-stakes“ purposes. We matched first-attempt COMAT scores with first-attempt COMLEX-USA Level 2-CE scores, and we conducted correlation analyses between the scores from the 7 COMAT subject examinations, as well as between COMAT and COMLEX-USA Level 2-CE scores. Multiple linear regression analyses were performed to investigate how much variance in COMLEX-USA Level 2-CE scores was explained by COMAT scores. RESULTS: In 2011 and 2012, respectively, 3751 and 3786 COMAT candidates had COMLEX-USA Level 2-CE scores (53.0% and 93.9%, respectively, had 1 high-stakes COMAT score). Intercorrelations between COMAT scores were low to moderate (r=0.27-0.53), as hypothesized. Correlations between COMAT and Level 2-CE scores were moderate to high, with the highest correlations for internal medicine COMAT scores (r=0.63-0.65). All regressions showed internal medicine scores as the strongest predictor of Level 2-CE performance. Groups with high-stakes scores had larger adjusted coefficients of determination than those with low-stakes scores (eg, R(2)=0.63 vs 0.52, respectively, in 2011). For 2012 candidates with high-stakes scores, all predictors were statistically significant. CONCLUSION: The COMAT subject examination scores were moderately intercorrelated, as hypothesized, with higher correlations between COMAT and COMLEX-USA Level 2-CE scores. The COMAT performance was predictive of COMLEX-USA Level 2-CE performance.


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