Research on children's counterproductive test behavior supports a three-factor model for behaviors: inattentiveness, avoidance, and uncooperative mood. In this study, test behaviors measured by the Guide to the Assessment of Test Session Behaviors (GATSB) are rated on a sample of 110 Hispanic Spanish-speaking children included in the Wechsler Intelligence Scale for Children-IV (WISC-IV) Spanish standardization to further understand the relationship of test behavior to test performance in Spanish-speaking children tested in their native language. GATSB scores generally are within the average range. Correlations between WISC-IV Spanish Full-Scale IQ and GATSB Total Score are significant for the total group, females and males, and ages 13-16 but not for ages 6-8 or 9-12. The amount of variance accounted for by the GATSB score is substantially less than in prior studies of Hispanic children tested in English with the WISC-III. Possible reasons for these discrepant findings are discussed. (Contains 1 table and 1 note.)