The MMPI results obtained from 245 adolescent males referred to the evaluation unit of a Juvenile Court were submitted to a multivariate classification system. By correlating individual subject profiles with the modal profiles, six membership groups were formed. No relationship was found between group membership and age or race. (Author)

Of 169 adult and adolescent stutterers studied, 112 reported family history of stuttering. Only 3 of the 112 reported birth or early childhood factors that might precipitate stuttering, as opposed to 21 of those without family history of stuttering. By considering these two conditions as separate factors in behavior, stutterers may be divided into…

Research on multiracial individuals is often cross-sectional, obscuring the fluid nature of multiracial self-categorization across time. Pathways of racial self-identification are developed from a nationally representative sample of adolescents aged 14-18, measured again 5 years later. A significant proportion of multiracial adolescents change…

A 12-item stimulus list composed of three conceptual categories, each with two low- and two high- associated word pairs, was presented for free Ss recall to 20 educable mentally retarded (EMR) preadolescents, 20 EMR adolescents, and 20 nonretarded fourth-grade children who showed associative clustering in accordance with preexperimental interitem…

To find a method for making better use of vocational interests in occupational guidance, Roe's occupational classification system was tested. A search was made to determine whether this system would yield a contiguity structure of occupations, by interests, showing the relationships between interests in different types of occupations. Three…

A meaningful classification for living, work, and education was achieved by grouping 159 persons who were blind or visually impaired into 5 groups ranging from low to high functioning, according to 7 independent living skills: family responsibility; health and hygiene; legal awareness; community awareness; money management; social/interpersonal…

This study begins a systematic examination of the role that content of materials used in experimental free recall tasks, as well as the origin plus the appropriateness of designated "conceptual categories," play in determining mnemonic performance of different groups. It will deliberately engineer the way materials are derived and…