The actions of others as determinants of behavior in social trap situations

Three studies were conducted to determine the effects of observing the behaviors of others upon an individual's actions in a simulated social trap situation. In Experiment 1, it was found that merely having the opportunity to make comparative appraisals of the actions of others led to greater competition for a finite common resource than when subjects were physically isolated from one another. In Experiment 2, false feedback was given to subjects to determine if the actions of others alone were responsible for the deleterious effects of having the opportunity for comparative appraisal; it was found that subjects quickly conformed to the behavior pattern of the interacting others, regardless of whether the false feedback indicated that the other subjects were consuming more or less than no-treatment control subjects. Experiment 3 was conducted to determine the motivation of subjects reacting to the actions of others; differential predictions based upon a competition/relative outcome explanation and upon an information search explanation were made. The data were consistent with the information search explanation.     

Alternative spatial reference systems: Intentional vs. incidental learning

Subjects were initially shown unfamiliar polygons while their heads were tilted and were then tested for their ability to recognize the polygons when their heads were upright. The objective (gravitational) orientation of the polygons during acquisition affected recognition accuracy only when the polygons were acquired under intentional learning instructions. When acquisition was incidental, evidence for the retention of retinally referenced memory representations was obtained. These results were consistent with a review of previous literature indicating that the use of a task requiring either the storage or retrieval of information from memory is a necessary (although not sufficient) condition for obtaining an effect of objective orientation on performance.     

The functional interaction of visual-perceptual and response mechanisms during selective attention in young adults, young-old adults, and old-old adults.

A response compatibility paradigm was employed to address how the perceptual and response activation processes functionally interact during selective attention and how they may be influenced by aging. The results showed that increasing the visual similarity of targets within response sets reduced the magnitude of the interference effect, but only with a narrow interletter distance. In a dissimilar condition, the magnitude of the interference effect did not vary with age. However, in a similar condition, the magnitude of the interference effect was larger for both young (18-30 years) and young-old adults (55-79 years) than for old-old adults (> or = 80 years). In contrast, all three groups showed similar facilitation effects. These results failed to provide support for the notion that enhanced spatial filtering of the target from the flankers produces a corresponding decrease in response competition. Rather, the decrease in the interference effect can be attributed to a functional interaction between the perceptual availability of partial information and the magnitude of response competition. The results also suggest that age does not impair response activation but that advanced age diminishes the availability of local, but not global, feature information.     

Identification and impact of risk and protective factors for drug use among urban African American adolescents.

Identified 10 risk and 12 protective factors associated with drug use among African American 8th graders (N = 994) in an urban school system. Regression analyses identified 7 risk and 7 protective factors with minimal overlap. The total number of risk factors was significantly related to the prevalence of use for cigarettes, beer or wine, liquor, marijuana, and a composite measure of drug use. The Protective Factor Index (PFI) was a significant moderator of the relation between risk and use of beer or wine, liquor, marijuana, and the composite measure. Longitudinal analyses of data on 650 students across the transition from middle to high school indicated that the sum of risk factors predicted changes in all drug use categories except the composite. The PFI significantly predicted changes in beer or wine, liquor, and composite drug use over this 1-year period. It also moderated risk for cigarette use, but not for other drugs. Results replicated prior studies and highlighted the importance of protective factors such as adaptive functioning in school and family influences.     

Parental role participation and perceptions of responsibility for children's school adjustment

This research examined the effects of parental participation in work and family roles on perceptions of responsibility for their children's school adjustment. We hypothesized that mothers would be perceived as being more responsible than fathers, and that participation in nontraditional work and family roles would influence perceived responsibility. Contrary to the first hypothesis, college student subjects perceived fathers as being more responsible than mothers for good adjustment, but not for poor adjustment. Consistent with hypotheses, role participation influenced perceptions of responsibility, but only for mothers. Divorced mothers were credited less and blamed more for school adjustment than married mothers, especially when they worked outside the home. Implications of the findings for future research on role participation are discussed.     

Engineering students’ perceptions of engineering specialties

The field of engineering is defined by a number of specialty areas, thus most engineering students must decide upon an educational specialty track within the engineering major. Data on familiarity with, and perceptions of similarity among 11 engineering specialties were collected from 129 undergraduate engineering students from a public urban university. Similarity data were collected by way of a paired comparison task, and multidimensional scaling techniques were used to map these data into spatial representations. A three-dimensional solution was selected. Analysis of variance procedures also were used to examine differences in perceptions of engineering specialties by gender, ethnicity, commitment to career choice, and career decision-making self-efficacy. Results indicated that female students rated engineering specialties as more prestigious than male students, and students with a more dogmatic stance towards career rated engineering as relatively exclusive to men.