Testing of a probabilistic model for the analysis of the Reflective-Impulsive cognitive styles was carried out on 178 school-age children. The model allows the sample be split into two groups of Cognitive Responders and Random Responders. Comparisons were made between groups at three age levels (8-yr., 10-yr., and 12-yr.-olds). Analysis indicated that Cognitive Responders scored better than Random Responders on a variety of measures, and group differences were related to children's developmental status. These results replicate and extend previous research with this model. Implications of random responses for research on reflection-impulsivity and the distinction between cognitive styles and cognitive development are discussed.

No abstract

A probabilistic model of reflection-impulsivity as measured by the Matching Familiar Figures Test (MFFT) is presented and tested on 77 fourth graders. In testing the model two groups emerged, a random response group (n = 22) and a cognitive response group (n = 55), who use the evaluation process. Correlations among latencies, total errors, initial errors, school-scores, and IQs were compared for our total sample and the two groups. The correlation of MFFT latencies and errors disappeared for the random-response group and new correlations with errors appeared while the cognitive response group kept a statistically significant correlation of latencies with errors and no other error correlation was shown. This last group was classified by Kagan's median-split procedure showing that most reflective subjects kept their classification. Preliminary results suggest a reinterpretation of reflection-impulsivity literature, especially as related to the impulsive style.

The relationship between children's reflection-impulsivity styles and their human figure drawings was examined for a sample of Mexican children of middle (n = 97) and low (n = 110) socioeconomic status. Drawings were scored for Developmental, Emotional, and Impulsivity indicators. As in previous research with American preschoolers, the drawings of 23 Mexican preschoolers did not correlate with the styles; however, significant relationships between the styles and Impulsivity scores of older children of low status (n = 87) were also found, suggesting that, when a higher-level of impulsivity is present in a population, a relationship between styles and drawings may be observed. The findings for low-status preschoolers, even their higher Impulsivity scores, support the notion that Kagan's measure of impulsivity is not appropriate for use with younger children.