Decision-making style among adolescents: relationship with sensation seeking and locus of control.

The principal aim of the study was to examine the psychometric properties and construct validity of the General Decision-Making Scale (GDMS) in a sample of 700 adolescents (aged 15-19 years). Confirmatory and exploratory factor analyses provide evidence for a solid five-dimension structure reflecting the theorized construct: rational, intuitive, dependent, avoidant and spontaneous. No differences were found with respect to gender; however older adolescents used more rational decision-making style than younger ones and had lower mean scores on intuitive, avoidant and spontaneous scales. Correlations between GDMS and both Sensation Seeking and Locus of Control scales provided substantiation for the convergent validity. Higher school achievements were positively associated with a rational decision-making style while the number of absences from school was positively related to spontaneous and avoidant styles. Data encourage the use of GDMS not only in the research of personality but for educational and counseling purposes.