The objective of the study was to determine if there were differences in the self-esteem of adolescents with low academic achievement as compared ro those with an average or high achievement. The participants were 60 adolescents, aged 13 to 16, of both sexes and with an average or high IQ . Thirty presented a low school achievement (study group) and 30 had a good achievement (contrast group). The WISC-R was administered to determine the IQ and the Rorschach lnkblots, using the CS uf Exner, to assess the self-esteem. The results showed that the Rorschach is a good instrument tu assess self-esteem. Likewise, there are significant differences in the self-esteem uf adolescents with low achievement due to emotional deficits, as compared to those with high achievement. / El objetivo fue determinar si existen diferencias en la autoestima de adolescentes con bajo rendimiento escolar comparados con los de un rendimiento promedio o superior. Los participantes fueron 60 adolescentes, entre 13 y 16 años, de ambos sexos, con un C.I. promedio o superior al promedio, de los cuales 30 presentaban un bajo rendimiento escolar  (grupo de estudio) y 30 un buen rendimiento (grupo contraste). Se administró el WISCR para determinar el C.I. y el Rorschach según el SC de Exner para evaluar la autoestima. Los resultados mostraron que el Rorschach es adecuado para evaluar la autoestima. Asimismo existe una diferencia significativa en la autoestima de adolescentes con bajo rendimiento como resultado de sus déficits afectivos, en comparación con los de alto rendimiento.

The present study examined the responses of 332 Kainai students ranging in age from 6 to 16 years to the Information, Arithmetic, and Picture Completion subtests of the Wechsler Intelligence Scale for Children-Revised (WISC-R) in order to determine the validity of these subtests as a measure of their intelligence. Two indices of validity were assessed: (a) subtest unidimensionality, and (b) order of item difficulty. With regard to the assumption of unidimensionality, examination of the data indicated low item-factor loadings on the Information, Arithmetic, and Picture Completion subtests. Examination of difficulty parameters revealed a nonlinear item difficulty order on all three subtests. These results support the conclusion of previous research that the WISC-R does not adequately assess the intelligence of Native children. Possible bases for the invalidity of the WISC-R for this population are discussed and recommendations for future research are presented.