Assessed the relative difficulty in the utilization of oddity and matching response strategies in 144 children, ages 5-13 years. A model of matching and oddity problem-solving is presented based on the data collected. (Author/ED)

Discusses Robert Havighurst's study of developmental tasks for stages of life from infancy to older adulthood. Discusses the relevance of the findings in relation to adult education. (JOW)

Investigated the impact of developmental concerns on 140 college students' self-disclosure using an instrument based on Erikson's psychosocial theory of development. Results indicated two developmental issues were found to be significant predictors of willingness to disclose problems to fathers and to same- and opposite-sex friends. (Author/BL)

Reports on three studies which investigated the development of the concept of horizontality in subjects from nursey school through college age. Normative data collected allowed for evaluation of Piaget's stages and for differences due to age, sex, and apparatus shape and orientation. (ED)

Piaget and Inhelder, in The Child's Conception of Space (1956), described the coordination of viewpoints (CV) spatial operation as one of the prerequisites to the development of the rotation and development (RD) spatial operation. This study investigated this developmental dependency notion and also evaluated the effects of age and sex on the…

Reports a series of studies conducted to investigate possible differences in the exploratory manipulation and play behavior of human infants 7-1/2- 11-1/2 months of age as a function of the attributes of the stimulus, the familiarity of the subject with the stimuli, the age and sex of the infants, and individual differences. (Author/CS)

A Self-Concept Scale for Adolescents based on Havighurst's Developmental Tasks for Youth was constructed to reflect the adolescents' perceptions of their ability to achieve these tasks in relation to personal abilities, the abilities of others, and the criteria for successful task completion. A validity and reliability study showed the scale to be…

A questionnaire attempting to define adolescence from the adolescent's view was administered to 300 students, 50 males and 50 females in each of 3 grades (grades 6, 9, and 12). The questionnaire examined (1) ages perceived as dividing points between adolescence, childhood and adulthood; (2) tasks seen as most important in advancing from one period…

The relationship between grade point average, grade level, age, sex, social class, and self-concept as defined by Havighurst's Developmental Tasks for Youth was investigated. Subjects were 280 adolescents ranging in age from 13 through 18 and coming from a variety of social classes. Each subject completed a Self-Concept Scale for Adolescents,…

A study was made to determine the extent of age bias among counselors working with adult clients in educational settings. An Age Norms Inquiry questionnaire was sent to counselors in 55 urban colleges and to members of the Adult Development Guidance Association (186 of 381 questionnaires were returned). Age bias was operationally defined as…

A Self-Concept Scale for Adolescents based on Havighurst's Developmental Tasks for Youth was constructed to reflect adolescents' perceptions of their ability to achieve these tasks in relation to personal abilities, the abilities of others, and the criteria for successful task completion. A validity and reliability study showed the scale to be…

Examined sex differences in eighth and tenth graders' and college students' use of elaboration in paired associate learning. Findings indicate that, as males and females became more proficient strategy users, sex differences diminished under more favorable task conditions that encouraged strategy use but remained constant under less favorable…

A Self-Concept Scale for Adolescents based on Havighurst's Developmental Tasks for Youth was constructed to reflect adolescents' perceptions of their ability to achieve these tasks in relation to personal abilities, the abilities of others, and the criteria for successful task completion. A validity and reliability study showed the scale to be…

Randomly assigned 80 boys and girls in grades 3 and 7 to either a football-related or a dance-related group. Performance expectancies obtained prior to engaging in a novel motor task can be affected by the way a task is presented. Boys were more affected than girls by labels of sex appropriateness. (Author/BJV)