We administered a comprehensive attentional battery to an epidemiologically defined sample of 435 firstand second-grade children to assess the influence of gender and verbal intelligence on attention. The battery included three versions of the continuous performance test (CPT), two digit cancellation tasks, three subtests from the WISC-R, and the Wisconsin Card Sorting Test. The results indicated that both gender and intelligence had an impact on attentional performance. Girls performed better than boys; they made fewer errors on the CPT and obtained higher scores on the digit cancellation task and the Coding subtest of the WISC-R. Children with higher verbal intelligence also performed better on the attentional tests, but this advantage was not observed across measures or levels of performance. For example, children with limited verbal skills performed significantly worse than their peers only in measures with high processing demands (the degraded CPT and the distraction version of the digit cancellation task).Problems with attention represent one of the most pervasive behavioral disturbances encountered in psychiatric and educational contexts, and are estimated to affect as many as 30% of all school-aged children (Cantwell, 1975;Kellam, Branch, Agrawal, & Ensminger 1975;Offord et al., 1987;Rutter, Tizard, & Whitmore, 1970). Despite the ubiquity of attention deficits and their detrimental effects on the child's functioning, little is known about the factors that influence attentional performance in normal children. There is little information, for example, regarding the impact of certain characteristics such as age, intelligence, and gender, or environmental factors such as family background and socioeconomic status, on attentional performance. In this study, we report on the role of two of these characteristics, intelligence and