The similarity of the constructs measured by the Perceptions of Success Questionnaire (POS; Roberts, 1993) and the Sports Orientation Questionnaire (SOQ; Gill, 1993) were evaluated using (a) confirmatory factor analyses of responses by 395 high school students (217 males, 178 females, ages 12 to 18) to items adapted from the two instruments and (b) relations to external criteria. Although the POS Mastery and SOQ Goal scales were highly related and reflected task orientation, the SOQ Competitiveness scale was more highly correlated with the POS Mastery and SOQ Goal scales than with the POS Competitiveness scale. Apparently, competitiveness assessed by the SOQ reflects a task orientation, whereas the POS Competitiveness scale reflects primarily an ego orientation. Sport psychologists need to beware of jingle (scales with the same label reflect the same construct) and jangle (scales with different labels measure different construct) fallacies, and pursue construct validity studies more vigorously to test the interpretations of measures.
Herbert W. Marsh is with the Faculty of Education at the University of Western Sydney, Macarthur, PO Box 555, Campbelltown, NSW 2560, Australia.