Some observations on control by spoken words in children's conditional discrimination and matching by exclusion

This study examined matching-to-sample procedures that might result in the emergence of conditional behavior never explicitly taught. Subjects were preschool children. Two pictures were displayed as comparisons on every trial, and samples were spoken words. In baseline training preceding each of three experiments, children learned to select pictures of a dog, a table, and a banana in response to their spoken English names. Thereafter, probe trials displayed novel comparisons with baseline comparisons: one novel comparison was displayed with the dog and another with the table. The three experiments differed primarily in the nature of the samples presented on probe trials. In Experiment 1, probe samples were novel words, "JAIJAI" and "BREEL." On the probes, each of seven subjects reliably selected the novel comparisons, apparently "excluding" the familiar ones. In Experiment 2, probe samples were from the subjects' baseline. On one probe, for example, the sample was "TABLE," and the subject had to choose either the dog or the novel picture. Exclusion was logically possible because the dog had always before been incorrect in the presence of "TABLE." Under these conditions, however, only two of nine children excluded reliably. In Experiment 3, probe samples were words that had never been samples on any matching-to-sample trial, but that had controlled the children's behavior in other settings. On one probe, for example, the sample was "PENCIL," and the subject had to choose either the dog or a novel picture. Subjects virtually always excluded the former and selected the latter. Unreliable exclusion in Experiment 2, therefore, apparently resulted because the probe samples had previously served also as samples on baseline trials. Spontaneous verbalizations recorded during probing provided further data consistent with this interpretation. The study helps to define variables controlling exclusion performances by showing that such performances are more likely to occur if the sample has no prior experimental history.     

Birth order and fear of success among midadolescents

While among 194 high school students 79 first-borns showed less fear of negative consequences of academic success than 78 last-borns and 37 middle-borns, no differences were observed on fear of increased positive attention or of increased responsibility.     

Labeling sexual harassment in the military: an extension and replication

Research conducted by V. Magley, C. Hulin, L. F. Fitzgerald, and M. DeNardo (1999) has suggested that women who experience sexual harassment report worse outcomes independent of the labeling process. This study replicates and extends that work. Discriminant analyses were conducted on a sample of approximately 28,000 men and women from the military. The authors included variables similar to those used by V. Magley et al., as well as a variety of antecedent variables. Two significant functions were obtained from the discriminant analysis. The 1st function ordered groups according to the frequency of harassment and accounted for substantially more variance than did the 2nd function, which ordered groups according to whether they labeled their experiences as sexual harassment. The overall results from these analyses demonstrate that labeling incidents as sexual harassment is of marginal meaningfulness in terms of job outcomes and antecedents of harassment.     

Religious Involvement and Its Association to Risk Behaviors among Older Youth in Foster Care

This study examined religious involvement and its association to risk behaviors (sexual behavior, marijuana use, alcohol use, and cigarette use) among older youth in foster care (N=383). Three dimensions of religious involvement were assessed—church or religious service attendance, religious practices, and religious beliefs. Findings showed that gender, ethnic group membership, sexual abuse history, and placement type were significantly associated with older foster care youth’s religious involvement. Hierarchical logistic regression analyses showed that religious service attendance was associated with reduced odds of youth’s engagement in sexual behavior in the past 2 months and current use of cigarettes. In addition, greater religious beliefs were associated with a reduction in odds of youth’s use of alcohol in the past 6 months and current use of cigarettes. The consideration of religious involvement as a positive influence and resource that may reduce unhealthy risk behaviors among older youth in foster care is discussed.     

Book review

Raffel, Burton. (1991). Artists All: Creativity, the University, and the World. University Park, PA: The Pennsylvania State University Press, (156 pp.) ISBN 0–271–00760–5.     

Resolving contradictory findings on sex and social class differences in children's responses to reinforcement

Contradictory results have been reported on the effectiveness of various reinforcers with children of different ages and socioeconomic classes. The present study considered the relative effectiveness of two types of verbal and one type of tangible reinforcement on a two-choice discrimination task (marble-in-the-hole) for preschool children. IQ and operant level were treated as covariates and accounted for the observed differences in performance between the 24 middle-class and 24 lower-class children and between the 24 males and 24 females. Disparate findings of previous studies regarding sex and social class differences might have been reconciled if baseline and IQ had been considered.     

Germ-line gene therapy and the medical imperative.

Somatic cell gene therapy has yielded promising results. If germ cell gene therapy can be developed, the promise is even greater: hundreds of genetic diseases might be virtually eliminated. But some claim the procedure is morally unacceptable. We thoroughly and sympathetically examine several possible reasons for this claim but find them inadequate. There is no moral reason, then, not to develop and employ germ-line gene therapy. Taking the offensive, we argue next that medicine has a prima facie moral obligation to do so.     

Treatment of adolescents in a residential facility: a study of three approaches

This study examined the preferred professional treatment approach at a residential treatment center for socially and emotionally maladjusted girls. The dorm child-care workers and the clinical and educational staff responded to a questionnaire composed of statements reflective of three theoretical orientations: psychoanalytic, person-centered, and cognitive-behavioral therapy. No significant differences were found between the three departments (clinical, school, dorm) for each model of therapy. The results also indicated that the professional personnel employed at this treatment facility were all in agreement that the cognitive-behavioral model of therapeutic intervention is the one preferred. Implications of these findings are discussed.     

Cultural Mistrust of Mental Health Professionals Among Black Males Transitioning from Foster Care

We examined cultural mistrust of mental health professionals among Black males who are transitioning from the foster care system (N = 74) and its relationship to their level of satisfaction with child welfare services and the frequency of negative social contextual experiences. Results of hierarchical regression analysis showed that the level of satisfaction with child welfare services moderated the relationship between negative social contextual experiences and cultural mistrust of mental health professionals. Specifically, more frequent negative social contextual experiences were related to greater cultural mistrust of mental health professionals for Black males reporting low satisfaction with child welfare services, but not for those reporting high satisfaction with child welfare services. Implications for service delivery are discussed.