Selective attention by children and adults to pictures specified by color

Four conditions were used to investigate developmental trends in the ability to establish and use a color set to direct the selective processing of pictures. In three conditions, 6-year-old, 9-year-old, and adult subjects viewed a series of pairs of pictures, with one red and one black line drawing in each pair. Subjects were asked to look either at the red pictures only, the black pictures only, or both pictures. In a fourth condition, subjects viewed a series of singly presented red and black pictures. Pictures of both colors were included in a subsequent recognition memory test. At all ages recognition memory was comparable for pictures of each color in the both and single conditions but was higher for pictures of the specified color in the selective red and selective black conditions. There was no evidence at any age that memory for pictures of the specified color was decreased by the presence of the second picture. These results, showing roughly comparable selectivity at all ages, were discussed in relation to findings of developmental trends in selective attention on more “traditional” central-incidental learning tasks.     

Role perceptions: Variations by sex and roles

A Role Perception Scale utilizing a combined projective-objective methodology was developed to assess female and male perceptions of each of three single roles — work, marriage, and parent — and two combined roles — work-marriage and work-parent. Research participants were 134 college students, 88 females and 46 males. Factor analysis of the objective scale, the only part to be scored, resulted in two major orthogonal factors labeled role engagement and competition factors. Sex and role differences for each factor were analyzed using 2×5 split block analysis of variance design with repeated measures. On three out of the five single and combined roles women perceived more engagement than men. In general males perceived roles as more competitive. These sex differences and patterns identified in within-sex analyses across roles are discussed.Parts of this paper were presented at the American Psychological Association Convention, Washington, D.C., September 1976. Research was supported in part by the Dean's Development Fund, New York University, School of Education, Health, Nursing, and Arts Professions. Both authors are senior authors. The order of names is randomly determined. The authors wish to thank Philip Merrifield and Barbara Hummel-Rossi for their statistical assistance in data analysis.     

Sex differences in knowledge of occupational dimensions across four age levels

The purpose of the present study was to better understand the development of children's occupational knowledge, as assessed by their ability to give ratings to jobs along various dimensions that were similar to ratings given by adults, and to investigate differences in boys' and girls' ratings. Overall, younger students gave higher ratings to the jobs pictured than did older students. Also, females gave higher ratings to three of the four dimensions investigated. Girls rated traditionally female jobs higher on respect and service, while boys rated traditionally male jobs higher on respect and service. Both males and females agreed that more education would be required for the female jobs pictured, but that males would be paid more money for the male jobs pictured.     

Anticipatory control of postural and task muscles during rapid arm flexion

A multicomponent pattern of premovement (anticipatory) activity in both task and postural muscles was examined for a unilateral rapid arm flexion movement (Belen'kii, Gurflnkel, & Pal'tsev, 1967) performed under simple visual reaction-time conditions. Subjects performed 30 right- and 30 left-side responses on each of four consecutive days. The anticipatory postural muscle activity may be considered a valid component of voluntary unilateral arm flexion. Invariances and variability in the spatial and temporal characteristics of the neuromuscular pattern are described in relationship to behavioral and motor control models of response organization. It is suggested that some temporal patterning among response components may not be preprogrammed centrally.     

The empirical study of teenage work: A behavioral code for the assessment of adolescent job environments

Policy recommendations that adolescents supplement their experience in school with experience in the workplace have been made in the absence of objective data on the nature of most adolescents' activity on the job. This paper presents a coding system for chronicling a variety of microbehaviors in sequence, as they occur, in adolescent job environments. Three elements of each of approximately 100 behaviors performed by a targeted teenage worker are recorded by an on-site observer who enters appropriate code numbers into a portable event recorder: (1) the social context of the behavior; (2) the character of the behavior; and (3) the duration and concomitants of the behavior, when appropriate. Each of 97 working teenagers was observed continuously over a two hour period on the job. Interobserver agreement on the coding of worker behaviors and the social contexts in which they occurred averaged .86 and .97, respectively. In addition to its applicability in research on the effects of working on adolescent development, information obtained using the code can be helpful in the evaluation of youth employment programs, the vocational counseling of adolescents, and the validation of subjective worker reports of job attributes.     

Classes,collections, and distinctive features: Alternative strategies for solving inclusion problems

This study analyzed the strategies that children ages 5 through 8 years used on two modified versions of Inhelder and Piaget's (The early growth of logic in the child. New York: Norton, 1964) class inclusion task. In two experiments, children were tested on Wilkinson's (Cognitive Psychology, 1976, 8, 64–85) “percept” inclusion task in which distinctive features marked both supraordinate and subclasses. It was hypothesized that children who fail standard Piagetian inclusion tasks succeed on the “percept” task by counting and comparing mutually exclusive features rather than using features as markers for classes and subclasses. The hypothesis was supported by children's performances on “percept” tasks in which solutions based on feature counting conflicted with solutions based on consideration of class inclusion relations. In two other experiments, children answered part-whole and part-part comparison questions in which both terms were described as classes and/or subclasses, or in which one of the two terms was described as a collection (e.g., a bunch of grapes). These experiments contrasted Markman and Seibert's (Cognitive Psychology, 1976, 8, 561–577) “organization” hypothesis that the greater psychological integrity of collections facilitates reasoning on part-whole comparison problems with the hypothesis that the faciltative effect results from the “large number” connotation of collective nouns. Results on collection problems in which parts were described as collections supported the “large number” hypothesis. Results were discussed in terms of their implications for Piaget's theory.     

Unequal Power Relationships Within a Cooperative or Corn petit ive Context

Sixty undergraduates negotiated an exchange of resources in dyads. They had either high or low power relative to the other and were within a competitive or cooperative context. Results support the hypothesis that these contexts affect unequal power persons' interaction and relationship. Compared to those in the cooperative context, high and lower power participants in the competitive context suspected each other, refused to exchange resources, developed negative attitudes toward each other, and associated power with control. In addition, low power participants in the competitive context indicated considerable insecurity about the interaction. These results highlight that previous literature has tended, often implicitly, to consider power and unequal power relationships within a competitive context. The dynamics proposed by this literature that inequality of power undermines negotiations and that power refers to the control of another were found to be much stronger within a competitive context than a cooperative one. Whereas the emphasis of the literature has been on power equalization, findings suggest that placing power differences in a cooperative con text can contribute to effective working relationships.     

Exercise, changes in aerobic capacity, and changes in self-perceptions: An experimental investigation

Subjects in an exercise training condition participated in a 10-week aerobic exercise class, whereas subjects in waiting-list control and independent control conditions did not. The results indicated that subjects in the training condition evidenced reliably greater improvements in physical fitness (aerobic capacity) and reported reliably greater improvements in their abilities and confidence in both the physical area (e.g., ability to run distances) and nonphysical area (e.g., frustration tolerance) than did subjects in the control conditions. On the other hand, improvements in physical fitness were not related to reported improvements in abilities and confidence. These findings are of interest because they indicate that some of the important personal changes that are associated with physical fitness training are not due to changes in fitness, but appear to be due to other factors (e.g., group participation and expectancies).