It is essential that intelligence assessment be integrated with creativity, although no instruments in Brazil do so. This research investigated the item difficulty and validity and reliability of the Bateria de Avaliação Intelectual e Criativa Infantil (BAICI) to address this gap. The first sample consisted of 612 children (54% M) aged 7 to 12 years, and the second sample consisted of 377 students (56% M), some of whom (N = 164) were already identified as exhibiting high skills/giftedness. Item analysis indicated the need to adjust the BAICI items. The results of a MANCOVA indicated that the BAICI exhibits evidence of validity with external variables because the group of gifted children was significantly distinguished from the group of students attending regular schools on tests of vocabulary, speed, logical thinking, and creativity. The study concludes that the BAICI has psychometric qualities that can be used in the psychological assessment of children.