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The correlations between results in different domains of cognitive abilities measured in medical students

The aim of this study was to investigate the correlations between IQ test scores obtained using the Raven’s Advanced Progressive Matrices (APM) and psychomotor testing using the Complex Reactionmeter Drenovac (CRD) test battery. In the period 2017-2019, 224 medical students at the University of Split School of Medicine studying in the English and the Croatian programs were recruited for this study. The IQ scores of the students were assessed using Raven’s APM where students had to complete 36 items of the abstract reasoning test. The computerized test of CRD- series was used for testing reaction times of light stimulus perception (CRD311), operative thinking through complex psychomotor limb coordination (CRD411) and convergent thinking through solving simple arithmetic operations (CRD11). The total test solving time (TTST) and the minimum single task solving time (MinT) were analyzed. On the CRD11 test, task-solving times were significantly shorter in students with higher APM scores (r=-0.48 for TTST and r=-0.44 for MinT ; P<0.001 for both tests). On the CRD311 test, there were also negative associations between task- solving times and APM scores (r=-0.30 for TTST and r=-0.33 for MinT, P<0.001 for both variables). The CRD411 test also demonstrated negative associations between task-solving times and APM scores (r=-0.40 for TTST and r=-0.30 for MinT, P<0.001 for both). In conclusion, this study demonstrated that achieving a higher APM score was associated with greater performances on the CRD-series reaction times tests, and therefore greater cognitive abilities for convergent thinking, operative thinking and speed of perception in medical students.

cognition, psychomotor performance, medical students, intelligence test

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