| Summary: | Authors of Cybernetic model of cognitive functioning designed a battery of tests (KOG9), based on the model in order to assess cognitive efficiency. Authors assert that scale's factor structure comprises the three factors: perceptive, serial and parallel processing. Results of the previous research as well as the logical analysis of the origin and content of the tests suggested the possibility that more parsimonious two-factor solution can explain the structure of the correlations among them equally well. KOG9 battery was administered to 1116 students of Faculty of sport and physical education and students from Department of Psychology in order to study its latent structure. In spite of the fact that factor congruence analyses suggested higher robustness (cross-sample stability) of the two-factor solution, results of both EFA and CFA spoke in favor of the three-factor solution. The problem of the lack of stability of the three-factor solution was located in not particularly well targeted choice of the markers of the efficacy of perceptual processing. The suggestion is to preserve the calculation of all three group scores, with some corrections. First of all, tests CF2 and/or GT7 should be replaced by some other perceptual test/tests of lower cognitive complexity. Some of the tests tapping parallel processing should be replaced by those more in line with the logic of the model.
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