Program planning for economically deprived children might be improved if behavioral information pertinent to specific subcultural groups were systematically obtained. This prospectus focuses on developing a three-part behavioral model which, when integrated, would identify and profile the nature of disadvantagement in terms idiosyncratic and meaningful to a given subpopulation. The first part of the model sets up a subpopulation matrix for five major subcultural groups (Black American, Mexican American, Puerto Rican, American Indian, Anglo American) in terms of rural or urban locale, geographic area, social class, and sex. The second major section of the model considers psychoeducational dimensions such as intelligence, language skill, conceptual ability, perceptual ability, motivation, and self concept. The final section considers process variables such as child rearing practices, reinforcement patterns, parental expectations, language patterns, family composition, stability, mobility, and the physical surroundings of the home. Used prescriptively, this model can help mold an intervention program appropriate to fill in deficits profiled for ethnic groups across social class levels. Extensive bibliography is included. [Not available in hard copy due to marginal legibility of original document.] (WY)