Specificity of the comorbidity of aggression and depression in children

A number of investigations have reported that depressive and aggressive behavior are correlated in children. However, this relation actually may represent an association between the more broadband constructs of internalizing and externalizing problems. Three hundred fifty third through sixth graders and their teachers completed measures assessing aggression, anxiety, hyperactivity, and depression. Results of a second-order confirmatory factor analysis suggested that the relation between aggression and depression in fact may represent a more broadband relation between externalizing and internalizing problems. These findings may have implications for understanding of the causal processes underlying the relation between aggression and depression in children, and more generally, for our conceptualization of the nature of the comorbidity of depression and aggression.     

The lab versus the clinic. Effects of child and adolescent psychotherapy.

Four recent meta-analyses, involving more than 200 controlled outcome studies, have shown consistent evidence of beneficial therapy effects with children and adolescents. However, most of the studies involved experimental procedures, nonreferred subjects, specially trained therapists with small caseloads, and other features that may not represent conventional clinic therapy. Research focused on more representative treatment of referred clients in clinics has shown more modest effects; in fact, most clinic studies have not shown significant effects. Interpretation studies have not shown significant effects. Interpretation of these findings requires caution; such studies are few and most could profit from improved methodology. The clinic studies do raise questions as to whether the positive lab findings can be generalized to the clinics where most therapy occurs; however, the lab interventions that have worked so well may point the way to enhanced therapy effects in clinics.     

Relations among self-reported depressive symptoms in clinic-referred children versus adolescents.

Although there is consensus regarding the existence of childhood depression, disagreement remains as to whether symptoms are developmentally isomorphic. Previous studies focused on developmental differences in symptom levels; analyses of relations among symptoms may be more appropriate, however. Here both approaches were used to compare the Children's Depression Inventory responses from 1,030 clinic-referred children and adolescents. Four of nine symptom categories showed significant developmental differences in their correlations with total score. Externalizing behavior and guilt were more strongly related to depression in children than adolescents; affective symptoms and concerns about the future showed the reverse pattern. Results illustrate the importance of considering relations among symptoms as well as differences in symptom levels when evaluating theoretical claims about developmental differences in the nature of clinical syndromes.     

College Students Use Implicit Personality Theory Instead of Safer Sex1

Many college students engage in high levels of unsafe sexual behavior that puts them at risk for HIV infection. To better understand the dynamics underlying college students' unsafe behavior, focus group discussions were conducted with 308 students (146 men and 162 women). The results showed that, instead of consistently using condoms, many college students use implicit personality theories to judge the riskiness of potential sexual partners. Specifically, partners whom college students know and like are not perceived to be risky, even if what students know about these individuals is irrelevant to HIV status. The students determine the riskiness of partners they do not know well based on superficial characteristics that are also generally unrelated to HIV status. Therefore, AIDS prevention interventions for college students must expose the ineffectiveness of the students' use of implicit personality theories to determine potential partners' riskiness, and the “know your partner” safer sex guideline should be abandoned.     

Reversibility of single-incentive selective associations.

Rats were trained to press a lever in the presence of a tone-light compound stimulus and not to press in its absence. In each of two experiments, schedules were designed to make the compound a conditioned punisher for one group and a conditioned reinforcer for the other. In Experiment 1, one group's responding produced food in the presence of the compound but not in its absence. The other group's responding terminated the compound stimulus, and food was presented only in its absence. When tone and light were later presented separately, light controlled more responding than did tone in the former group, but tone gained substantial control in the latter. The same effects were also observed within subjects when the training schedules were switched over groups. In Experiment 2, two groups avoided shock in the presence of the compound stimulus. In the absence of the compound, one group was not shocked, and the other received both response-independent and response-produced shock. When tone and light were presented separately, the former group's responding was mainly controlled by tone, but the latter group's responding was almost exclusively controlled by light. These effects were also observed within subjects when the training schedules were switched over groups. Thus, these single-incentive selective association effects (appetitive in Experiment 1 and aversive in Experiment 2) were completely reversible. The schedules in which the compound should have been a conditioned reinforcer consistently produced visual control, and auditory control increased when the compound should have become a conditioned punisher. Currently accepted accounts of selective associations based on affinities between shock and auditory stimuli and between food and visual stimuli (i.e., stimulus-reinforcer interactions) do not adequately address these results. The contingencies of reinforcement most recently associated with the compound and with its absence, rather than the nature of the reinforcer, determined whether auditory or visual stimulus control developed.     

Discriminated response and incentive processes in operant conditioning: a two-factor model of stimulus control

Understanding stimulus control generated in instrumental learning requires the direct investigation of discriminated response and reinforcer (incentive) processes acquired exclusively through the response-reinforcer contingencies operating on complex (multicomponent) baselines. Two series of stimulus-compounding studies accomplished this direct investigation. In one series, the independent variable was the relative reinforcement between schedule components; in the second series, it was relative response rate between components. Stimulus-compounding tests revealed that response and incentive processes enhanced each other when in agreement, counteracted each other when in opposition, and produced intermediate results when only one factor was operating. This pattern of results led to the conclusion that these factors were algebraically combining and to the development of a response/incentive matrix reflecting these dynamics. This two-factor analysis was extended to the peak-shift effect in stimulus generalization experiments and to the generation of inhibitory control. Two decades of stimulus compounding and peak-shift research were organized within this two-factor framework, extending this traditional approach to learning to active research areas heretofore not systematically considered in these terms.     

The hyperactive child at adolescence: Cognitive,emotional, and social functioning

In view of the paucity of detailed followup studies on hyperactive children, the performance of 15 adolescents diagnosed hyperactive 5 years previously was compared to that of a control group of equivalent age, sex, intelligence, and social class. Eleven cognitive tests measuring sustained attention, visual-motor and motor skills, abstraction, and reading ability, as well as three self-assessment tests examining selfesteem, activity level, social functioning, academic status, and career aspirations were administered. The hyperactives performed significantly worse than the controls on the sustained attention, visualmotor, and motor tasks, and on two of the four reading tests. They also gave themselves significantly lower ratings on some of the selfesteem and sociability items. It would appear that the hyperactives at adolescence still have attentional and stimulus-processing difficulties, which affect not only their academic performance but also their social functioning.This study was supported by a Federal-Provincial Mental Health Grant to Dr. G. Weiss. The authors wish to thank Katherine Levine and Margaret Radigan for their assistance with test preparation and scoring. Thanks are also extended to Ken MacRae for his computer-processing advice, particularly his help with several multivariate and principal components analyses from which the present authors have derived their current theoretical position. Klaus Minde and Nancy Cohen are now at the Toronto Hospital for Sick Children, while Elizabeth Hoy is at the Queen's University of Belfast, Northern Ireland.     

Behavioral marriage therapy. III. The contents of Gurman et al. may be hazardous to our health

This paper was written as a reply to a critique of behavioral marital therapy (BMT) by Gurman, Kniskern, and Knudson (6, 7). The reply is divided into four sections. First, the paper addresses the critics' comments on the conceptual model put forth by BMT, correcting and clarifying various misconceptions, and restating some of the basic ideological principles in the behavioral model. Second, the paper discusses behavioral change techniques and technology, along with extratechnological treatment considerations. Again, misrepresentations of BMT are corrected. Third, an analysis of the literature investigating the therapeutic efficacy of BMT is reviewed, and the conclusion is reached that BMT is demonstrably effective, at least for a substantial number of mildly to moderately distressed couples. Criticisms are made of the analysis of the same literature conducted by Gurman et al. We conclude that, contrary to the spirit of the paper by Gurman et al., BMT is a viable framework for conceptualizing and treating relationship problems and that the commitment of its adherents to experimental investigation promises continued evolution, refinement, and improvement.