The Act Frequency Approach to the study of impulsivity

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Abstract
Though widely used in research on personality, the impulsivity construct is far from being well defined. Different ways of measuring and operationalizing this construct have led to contradictory empirical results. Nor is it clear where impulsivity belongs in multidimensional personality models. For instance, in Eysenck's original scheme it is treated as a component of extroversion, whereas in Costa and McCrae's (1992) NEO model it is a facet of the neuroticism dimension. In this study, we used Buss and Craik's Act Frequency Approach to investigate the components of impulsivity and its relationships (at both internal and manifested structure levels) with extroversion and neuroticism. A set of acts was identified, the frequency of commission of which correlated with other measures of impulsivity (especially its motor and cognitive aspects), and correlated better with neuroticism than with extroversion.