Located within the recently emerged field of researcher development, this article represents an attempt to make a key theoretical contribution to its knowledge base through a conceptual analysis. It presents as propositional knowledge an original theoretical model of the componential structure of researcher development, as interpreted and defined…

Research leadership, a much neglected area of educational leadership and management, is disadvantaged by having an underdeveloped and inadequate knowledge base. This article represents a contribution to this knowledge base through a conceptual analysis. It presents as propositional knowledge an original theoretical model of the componential…

Investigates relationships between family structure variables and 17 measures describing children's intellectual, psychosocial, and physical growth. Subjects were a 10 percent random sample of a Danish cohort consisting of children born in a Copenhagen hospital between September 1959 and December 1961; 857 subjects were followed to age 19.…

A comparison of the theories of Jean Piaget and William Perry (using individual interviews with college students) shows that the two theories outline different and independent processes for assessing intellectual development. (JN)

Using data from a broader longitudinal study, this investigation explores within-subject and cross-generational stability of intellectual competence and the relationship of such stability to aggressive behavior. Data were gathered three times (when subjects' modal age was 8, 19, and 30 years). Initially, subjects included the entire population…

Estimates confluence model of intellectual development for a within-family sample of 321 children from 101 transracial adoptive families. Mental ages of children and their parents and birth or adoption intervals were used in a nonlinear least-squares estimation procedure to obtain children's predicted mental ages. Results suggest efficiency of the…

Studied the sleep state organization and EEG patterns at term date in 53 preterm infants as an index of the maturity and integrity of neurophysiological organization that may have implications for their later development. (HOD)

Seventy-one college general biology students were taught a unit in Mendelian genetics by the traditional lecture method. Emphasis was placed on meiotic formation of gametes, dominance, segregation, and independent assortment. The Punnett square model was used for all practice problems. While using this model, students were asked to: (1) identify…

An increase in the cognitive restructuring aspect of field-independence was found to be associated with an increase in formal operational thought in 11- to 12-year-olds who were given materials designed to achieve this result. Materials used (including computer programs) are described in an appendix. (JN)

This paper demonstrates a method for constructing long variables using items that elicit partically correct responses across ages. Long variables may be defined by students at different ages (year levels) attempting common items within a test containing other items considered to be appropriate for each age or year level. A developmental model of…

This study examined the effect of formal and concrete instruction upon science achievement and intellectual development of sixth grade students. Formal instruction, which emphasized oral and written language, included lecture, discussion, oral quizzes, written assignments, reading assignments, films, film strips, written tests, and quizzes.…

Recently, a number of studies have reported a high correlation between the supposedly separate traits described as integrated science process skills and formal reasoning ability. The implication has been that these two constructs are different but related. Further implications have been made that a treatment to enhance one "trait" might…

Study looks at pigtailed macaque in the context of visual recognition problems adapted from a standardized test developed for use with human infants. Results demonstrate that the low-risk group easily differentiated novel from previously seen targets; the high-risk group gave no evidence of recognition. (Author/RWB)

This study examined the relationship between adaptive functioning and intellectual functioning in 18 children with autism and mental retardation and 20 children with mental retardation. The children with autism showed significantly more impairment in adaptive behavior composite scores, verbal reasoning abilities, socialization skills, and…

Perry's scheme of intellectual and ethical development was examined for sex differences with respect to content areas for which sex differences have elsewhere been suggested: occupational choice, interpersonal relationships, and sexual identity. In addition, the content area religion and ego development, as measured by Loevinger's sentence…