This study was undertaken to construct the Kuwait University Anxiety Scale in 2 comparable Arabic and English versions. The intent was to provide a research tool as well as a measure of predisposition to develop anxiety in general among 252 undergraduates and 400 secondary high school students (all Ss aged 15-26 yrs). The scale is comprised by 20 brief statements answered on a 4-point intensity scale, anchored by 1: Rarely and 4: Always. Factor analysis yielded 3 high-loaded factors of Cognitive/Affective, Behavioral/Subjective, and Somatic Anxiety, with moderate interfactor correlations. Item-remainder correlations ranged from .27 to .74. Reliabilities ranged from .88 to .92 (alpha) and between .70 and .93 (test-retest), denoting good internal consistency and stability. Criterion-related validity of the scale ranged between .70 and .88 (5 criteria), while the loadings of the scale on a general factor of anxiety were .93 and .95 in 2 factor analyses, demonstrating the scale's criterion-related and factorial validity. Discriminant validity of the scale was demonstrated. The scale correlated .65 with scores on the Beck Depression scale. Male adolescents attained a higher mean score than male undergraduates. Females have significantly higher mean scores than their male counterparts.