Psychometric characteristics of a multidimensional measure to assess impairment: The Child and Adolescent Functional Assessment Scale

The Child and Adolescent Functional Assessment Scale (CAFAS) is a multidimensional measure of degree of impairment in functioning. Interrater reliability data are presented for lay raters, graduate students, and frontline staff. Reliability was high for the total score and behaviorally-oriented scales. Construct, concurrent, and discriminant validity were assessed with the sample of children and adolescents evaluated at the Fort Bragg Demonstration Evaluation Project. Youth and their caregivers were evaluated via interview and selfcompleted instruments at four time points. Significant correlations were found between the CAFAS and other related constructs. Concurrent validity was demonstrated by logistic regression analyses examining the relationship between CAFAS ratings and problematic behaviors endorsed on measures completed by parents, teachers, or the youth. Youth with higher CAFAS total scores were much more likely to have poor social relationships, difficulties in school, and problems with the law. Discriminant validity was assessed with a repeated measures analysis of variance with intensity of care at intake and time as factors. Youth who were inpatients or in residential treatment centers at intake had higher CAFAS scores than those who were outpatients. These findings provide strong evidence for the reliability and validity of the CAFAS.     

Rehearsal in Spatial Working Memory: Evidence From Neuroimaging

A variety of biological evidence has identified a frontal-parietal circuit underlying spatial working memory for visual stimuli. But the question remains, how do these neural regions accomplish the goal of maintaining location information on-line? We tested the hypothesis that the active rehearsal of spatial information in working memory is accomplished by means of focal shifts of spatial selective attention to memorized locations. Spatial selective attention has been shown to cause changes in the early visual processing of stimuli that appear in attended locations. Thus, the hypothesis of attention-based rehearsal predicts similar modulations of visual processing at memorized locations. We used functional magnetic resonance imaging to observe posterior visual activations during the performance of a spatial working memory task. In line with the hypothesis, spatial rehearsal led to enhanced activation in the early visual areas contralateral to the memorized locations.     

Combining information from sources that vary in credibility

Models describing the role of source credibility in information integration were tested in two experiments. In the first experiment, subjects estimated the value of used cars based on two cues: blue book value and an estimate provided by one of three friends who examined the car. The three sources were described as differing in mechanical expertise. In the second experiment, subjects rated the likeableness of persons described by either one or two adjectives, each adjective contributed by a different source. The sources differed with respect to the length of their acquaintance with the person to be rated. In both experiments, credibility of the source magnified the impact of the information he provided. Further, this multiplicative effect of a source was inversely related to the credibility of the other source, in violation of additive or constant-weight averaging models, but consistent with a relative-weight averaging model.     

ASSESSMENT AND TRAINING OF CLINICAL INTERVIEWING SKILLS: ANALOGUE ANALYSIS AND FIELD REPLICATION

Two studies were conducted to assess and train clinical interviewing skills. In Experiment 1, eight university practicum students (“therapists”) and either role played or volunteer “clients” were audiotaped during simulated interviews. Following the collection of baseline data on both therapist and client responses, training was provided by way of written materials, classroom instruction and practice, and quizzes. Results of a multiple baseline design across subjects showed improvements in therapists' interviewing skills and subsequent increases in client responding. Experiment 2 replicated and extended the research to a hospital outpatient clinic, in which therapists interviewed the parents of children with behavior problems. In addition, four months following the completion of Experiment 2, follow-up data collected during a maintenance condition showed continued high levels of therapist and client behavior. Finally, a panel of expert peers indicated that each response category was judged highly relevant to the behavioral assessment process.     

Distraction and time estimation

It is argued that events which occur during an interval of time which is being judged may be classified in terms of their effects on the alertness of the subject, and in terms of the degree to which they distract him from the task of detecting and processing time-relevant cues. A distracting task, defined by the number of arithmetical operations a subject was required to perform, was presented while reproductions of an interval were being made. The data support the prediction that the higher the level of distraction, the less time a subject will judge to have elapsed during an objective period.     

Motivation and Academic Achievement: The Effects of Personality Traits and the duality of Experience

The present study examined the relationship of personality, experience while studying, and academic performance. One hundred and seventy talented high-school students (68 males, 102 females) completed the Personality Research Form (PRF) and recorded their experience via the Experience Sampling Method (ESM). The results showed that controlling for ability, work orientation, a PRF factor, was a better predictor of grade than experience. However, an experiential variable,intrinsic motivation while studying, was related to the difficulty level of courses students took over the 4 years of high school. The results supported the notion that there are two kinds of motivation in scholastic achievement, one directed toward long-term goals, the other directed toward ongoing experience.