Evidence of validity for the Skill Scale scores of the Campbell Interest and Skill Survey Jo-Ida C. Hansen * , Melanie E. Leuty Department of Psychology, University of Minnesota, N565 Elliott Hall, 75 East River Road, Minneapolis, MN 55455, USA Received 22 December 2006 Available online 12 April 2007 Abstract The purpose of the current study was to investigate the evidence of validity of the Skill Scale scores on the Campbell Interest and Skill Survey (CISS). In a sample of 221 college students, anal- yses between the CISS Skill Scale scores and the CISS Interest Scale, the Strong Interest Inventory, and selfreported MAEQ abilities scores were conducted. Results provided evidence of convergent and discriminate validity of the Skill Scale scores. Furthermore, Skill Scale scores were found to be predictive of declared college major above chance levels. Conclusions from the results support the use of the CISS Skill Scales in counseling settings. Further investigation of the content being measured by the Skill Scales and their use in career interventions is recommended. Ó 2007 Elsevier Inc. All rights reserved. Keywords: Campbell Interest and Skill Survey; Validity; Career assessment 1. Introduction Vocational interests have long been thought of as a driving force in career decisions. Seminal work by Strong (1943) and Super (1957) suggested that interests were a main fac- tor in determining what vocation people would enter. Since then, research has confirmed that interests are a strong predictor of occupational choice (see for example Harmon, Hansen, Borgen, & Hammer, 1994; Lent, Brown, & Hackett, 1994). The finding that 0001-8791/$ - see front matter Ó 2007 Elsevier Inc. All rights reserved. doi:10.1016/j.jvb.2007.04.006 * Corresponding author. Fax: +1 612 625 4051. E-mail address: hanse004@umn.edu (J.C. Hansen). Journal of Vocational Behavior 71 (2007) 23–44 www.elsevier.com/locate/jvb