Reliability of Academic and Dispositional Measures of Procrastination

The reliabilities of the Procrastination Assessment Scale—Students and the General Procrastination Scale were examined. Scores ( n = 116) on split-half comparisons (odd vs even items) from two sections of the former were significantly, though moderately, correlated. Test-retest comparisons (1 mo.; n = 99) on both sections of the scale were correlated significantly. Test-retest scores on the general scale for a second independent sample of students (1 mo; n = 119 out of 132) also were correlated significantly. There was no significant sex difference on test-retest scores from either inventory. The inventories have adequate reliability and acceptable temporal stability as psychometric measures of procrastination.