Black Intelligence Test of Cultural Homogeneity and Shipley-Institute of Living Scale Scores for Black Chicago Youths

Stmzmary.48 black teenagers living in the Douglas neighborhood of Chi- cago were given both the Black Intelligence Test of Cultural Homogeneity and the Shipley-Institute of Living Scale. Lower-class black subjects (housing project residents) scored below middle-class black subjects (high-rise apartment resi- dents) on the vocabulary and abstract reasoning subtests of the Shipley but not on the Black Intelligence Test of Cultural Homogeneity. Scores on the latter increased directly with age, and females scored higher than males. When age was controlled for middle-class subjects Black Intelligence Test of Cultural Homogeneity scores were negatively related to vocabulary and when sex was controlled with lower-class subjects, scores were positively related to vocabulary. Abstract reasoning was negatively related to Black Intelligence Test of Cultural Homogeneity scores when age was controlled for all subjects. The Black Intelligence Test of Cultural Homogeneity has discriminated black and white St. Louis teenagers' and black and white Portland police applicants (Matarazzo & Wiens. 1377). This study compared scores of black Chicago teenagers of different socio- economic levels, based on place of residency, on the Black Intelligence Test of Cultural Homogeneity. The 22 male and 26 female subjects (16 to 18 yr. old) were also given the vocabulary and abstract thinking subtests of the Shipley-Institute of Living Scale. Testing was done in small groups in the Douglas neighborhood and subjects were told only that they would be taking part in a community survey. Residents of the public housing project (lower socio-economic level) were tested in a youth activity center in the project and residents of high-rise apartments (middle class) were tested in a church near the apartments. The mean raw Black Intelligence Test of Cultural Homogeneity score of 57.31 (SD = 17.58) was well below the mean of 84.89 reported by Matarazzo and Wiens ( 1977) and the 87 reported by Williams.' The multiple regression coefficient of age, sex, socio- economic level, vocabulary and abstract reasoning on test scores was significant; R = ,569 (F = 4.02, p < .005). However, age (F = 10.83, p < ,002) which was positively related to Black Intelligence Test of Cultural Homogeneity scores and sex (F = 7.43, p < .009), with females scoring higher than males, accounted for 8S% of the predicted variance of the scores. Socio-economic differences were large for vocabulaty (F = 36.96, Af = 1/36, p < ,001). abstract reasoning (I; = 12.89, df = 1/36, p < .001), and a full scale Shipley (F = 28.86, df = 1/36, p < ,001) but there were no socio-economic differences on the Black Intelligence Test of Cultural Homogeneity. However, test scores correlate with Shipley scores in opposite directions within socio-economic levels when 'Request reprints from J. J. Rearden, Eastern Illinois University, Charleston, IL 61920. For tabled data in Document NAPS-03505 remit to Microfiche Publications, 440 Park Avenue South, New York, N. Y. 10016, $3.00 for fiche or $7.75 for photocopy. 'R. L. Williams. Black Intelligence Test for Cultural Homogeneity: manual of directions. (Available. 1975, from Robert L. Williams, Williams and Associates, Inc., 6374 Delmar Boulevard, St. Louis, Missouri 63130)