Psychometric properties of UPPS impulsive scale in high school students

In order to investigate the practicality, reliability, validity, and norming of UPPS Impulsive Behavior Scale
46 items Whiteside & Lynam, 2001), 560 high school students (281 females, 279 males) of Tehran were selected by multistage random sampling method. The results indicated that two items were omitted because of the negative and weak correlation with total score and weak factor loading. The reliability coefficient using Cronbach’s  was 0.77. Using the principle component analysis and varimax rotation, four factors: lack of premeditation, sensation seeking, urgency and lack of perseverance, extracted which explained 33.9 percent of the total variance. Correlation between sensation seeking factor of the Impulsivity Scale with Zukerman Sensation Seeking Scale (Zackerman et al., 1978) was significant (r=0.45). Other factors of the Impulsivity Scale didn’t have significant correlations with Zukerman Sensation Seeking Scale.