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Most contemporary explanations of procrastination have relied on psychodynamic and cognitive-behavioral models focusing on avoidance and aversion. Somewhat counterintuitively, however, procrastination (delaying decisions and actions) has been moderately associated with impulsivity (acting rashly); both might be related to deficiencies in managing long-term goals. Based on these observations, investigators sought possible genetic connections among these traits in an analysis of data from a large twin study.
Included in this analysis were 181 monozygotic and 166 dizygotic same-sex twin pairs (mean age, 23), who completed several self-rating questionnaires on procrastination (e.g., goal neglect, effort avoidance, and need for external control),…