Body image in eating disorders: the influence of exposure to virtual-reality environments

The aim of this article was to study the effect of virtual-reality exposure to situations that are emotionally significant for patients with eating disorders (ED) on the stability of body-image distortion and body-image dissatisfaction. A total of 85 ED patients and 108 non-ED students were randomly exposed to four experimental virtual environments: a kitchen with low-calorie food, a kitchen with high-calorie food, a restaurant with low-calorie food, and a restaurant with high-calorie food. In the interval between the presentation of each situation, body-image distortion and body-image dissatisfaction were assessed. Several 2?x?2?x?2 repeated measures analyses of variance (high-calorie vs. low-calorie food?x?presence vs. absence of people?x ED group vs. control group) showed that ED participants had significantly higher levels of body-image distortion and body dissatisfaction after eating high-calorie food than after eating low-calorie food, while control participants reported a similar body image in all situations. The results suggest that body-image distortion and body-image dissatisfaction show both trait and state features. On the one hand, ED patients show a general predisposition to overestimate their body size and to feel more dissatisfied with their body image than controls. On the other hand, these body-image disturbances fluctuate when participants are exposed to virtual situations that are emotionally relevant for them.     

School Context and the Problem Behavior and Social Skills of Students with Emotional Disturbance

Variability in the social and behavioral characteristics of students with emotional disturbance (ED) in the public schools may impact special education effectiveness; yet very little evidence exists on how such variability may express itself from school to school. One place to begin such investigation involves school context as expressed by income level and academic performance. In this study, we selected 140 children (grades kindergarten through 6) receiving special education services for ED in schools in a large east-coast urban area. We gathered school-wide test results from state achievement testing and school poverty levels from eligibility for free or reduced lunch on each school. For each child, we collected teacher ratings of problem behavior and social skills. Findings from regression analyses revealed significant relationships between school context and children’s externalizing and internalizing behavior. We discuss the implications of these findings for the concept of ED as a unitary disability category in special education research and practice.     

Teachers' Ratings of Attention-Deficit Hyperactivity Disorder and Decisions for Referral for Services in Taiwan

We examined the relationship between elementary teachers' perceptions and ratings of Attention-Deficit Hyperactivity Disorder (ADHD) symptoms of students and their referral decisions in public schools in Taiwan. One hundred and twenty-one homeroom teachers were randomly selected from six public elementary schools in Taipei County, Taiwan, to participate in the study. The study contained two groups of children, a random sample (n — 478) and a nominated sample (n = 219). Results of the discriminant analyses showed that Chinese teachers' ratings of ADHD could predict group membership as to whether a student had been or might be referred. This study found that, despite the fact that Chinese teachers believed children with scores two standard deviations above the mean had behavior problems, teachers decided not to refer those students. Teachers were more likely to refer children whose scores were three standard deviations above the mean.     

The Adolescent Behavior Checklist: Validation Using Structured Diagnostic Interviews

The purpose of this study was to evaluate the discriminant validity of scores from the Adolescent Behavior Checklist (ABC), a self-report measure of ADHD symptomatology for adolescents ages 11–17 years. Validity was assessed through correlational, univariate, and discriminant function analyses using three groups: (1) adolescents diagnosed with ADHD, (2) adolescents currently experiencing a mood and/or anxiety disorder, and (3) adolescents with no major psychological disorder. Convergent and divergent validity of the ABC factor scores was demonstrated through correlational results with (1) parent and adolescent report of ADHD symptoms during structured psychiatric interviews and (2) scores on questionnaires measuring related and nonrelated constructs. Univariate analyses indicated that the ADHD group obtained significantly higher scores than did the nonclinical adolescents across all ABC factors. Additionally, the ADHD group scored significantly higher than did the psychiatric controls on the following ABC factors: Conduct Problems, Impulsivity/Hyperactivity, and Social Problems. Results from discriminant analyses supported the reliability of ABC scores in correctly classifying participants into groups. Compared to the Youth Self-Report, the ABC was found to be somewhat better at classifying when used in a multiinformant discriminant analysis. Therefore, overall results from the current study suggest that the ABC is a valid and useful self-report screening measure for ADHD symptoms and related difficulties.     

Individual and group differences in intelligence and speed of information processing

A battery of eight different reaction time (RT) tests, measuring the speed with which individuals perform various elementary cognitive processes, and a group test of scholastic aptitude (the Armed Services Vocational Aptitude Battery, ASVAB) were given to 50 black and 56 white male vocational college students. The regression of the general factor scores of the ASVAB on the RT measures yielded a shrunken multiple correlation of 0.465. Although discriminant analyses, when applied separately to the ASVAB subtests and to the RT variables, showed highly comparable overall discrimination (over 70% correct classification) between the black and white groups, factor scores derived from the general factor (labeled ‘speed of information processing’) of the RT battery show only about one-third as large a mean black-white difference as the mean group difference on the general factor scores derived from the ASVAB. Comparisons were also made between the 106 vocational college students and 100 university students of higher average academic aptitude who had previously been tested on the same RT battery (Vernon, 1983a). These groups showed marked differences on the RT variables, the largest differences occuring on the tests that required more complex cognitive processing. The more complex RT tests also correlate most highly with the psychometric measures of ability within each group. The results are consistent with the hypothesis that individual differences and the mean differences between groups in psychometric abilities and scholastic achievement are related to differences in the speed of information processing as measured in elementary cognitive tasks.     

Developmental and family milieu correlates of resilience in urban children who have experienced major life stress

Reports findings from interviews with parents of demographically-comparable groups of highly-stressed urban children with stress-resilient (SR) and stress-affected (SA) outcomes at ages 10-12. SR and SA children were compared on family milieu and child development variables assessed within a developmental framework. Compared to SAs, parents of SRs scored higher on variables reflecting parent perceptions of a nurturant caregiver-child relationship and self-views as effective caregivers, in the context of positive discipline practices, a child's positive early temperament, and support for primary caregivers. A discriminant function analysis identified seven variables that optimally differentiated the groups and correctly classified 86% of the Ss as SR or SA.     

Teachers'' ratings of social competence of children with high versus low levels of depressive symptoms

This study examined the relationship between children's self-ratings of depressive symptoms on the Children's Depression Inventory (CDI) and teachers' ratings of the situational social competence of these children based on the Taxonomy of Problematic Social Situations (TOPS). Children in the high CDI group showed significantly higher teacher ratings (indicating lower social competence) than children in the low CDI group on four TOPS scales: peer group entry, response to provocation, response to success, and teacher expectations. Of the children in the high CDI group, 85% could be correctly classified with a discriminant analysis on the basis of TOPS ratings; of the children in the low CDI group, 77% were correctly classified. Implications of these findings, as well as limitations of the study, are discussed.     

A longitudinal comparison of couples with sex-typical and non-sex-typical orientations to intimacy

The present study was designed to investigate the relationship experience of males and females who do not conform to sex-typical orientations to intimacy. One hundred sixty-three couples' and 88 nondating singles' (total N=414) responses to the Relationship World Index—Version 2 (RWI-2) were analyzed via discriminant analysis to determine if subjects' sex could be predicted accurately upon the basis of their RWI-2 scores. One discriminant function was found which was significant by the Wilks' lambda test [x²(60)=140.57, p<.001]; the procedure correctly classified 76% of the respondents. Those who were classified correctly were considered sex-typical and the remaining 24% of the sample was considered non-sex-typical in their orientations to intimacy. Additional analyses using data from a 6-month longitudinal study located qualities which significantly distinguished sex-typical from non-sex-typical subjects and couples in which at least one member was non-sex-typical from couples in which both members were classified as sex-typical.     

Predicting treatment preferences for agoraphobia

Fifty-one university students completed two questionnaires: (1) The Millon Behavioral Health Inventory (MBHI) and (2) a questionnaire evaluating Ss' ratings of acceptability and effectiveness of five treatments for agoraphobia (Norton, Allen and Hilton, 1983a). The results showed that the Ss rated the three psychological treatments as more effective and acceptable than the two drug treatments. A discriminant function analysis, using the coping style measures of the MBHI and the Ss' ratings of acceptability and effectiveness of tranquilizers as predictor variables, correctly classified 78% of the Ss as to which psychological treatment they rated as more acceptable and effective for agoraphobia.     

The Observation of Child Behavior During Parent-Child Interaction: The Psychometric Properties of the Crowell Procedure

The observation of child behavior has to be made in ecologically valid contexts. Parent-child interaction was thought to be the most suitable context, since empirical evidence displayed strong associations with children’s behavioral outcomes, psychopathology, social relationships and well-being. Using clinical data from 137 caregiver-child dyads, the main goal of the current study was to test the psychometric properties of an adapted version of the Crowell Procedure among preschoolers. Despite the interest that the Crowell Procedure has aroused, its psychometric properties remain relatively under-documented. This research aimed to study (1) the association between parental and child behavior, (2) the discriminant properties of the Crowell Procedure between preschoolers with a clinical level of externalizing behavior and non-clinical children and (3) the correlation between the Crowell Procedure and a behavioral checklist. The results support the consistency of both tasks and scales, the discriminant properties, external validity and fidelity of the coding system. The Crowell Procedure can therefore be used as an observational paradigm to assess both child and parent behavior in clinical and research contexts. The discriminant analyses revealed that the procedure was effective at differentiating children displaying a clinical level of externalizing behavior from normally developing ones.     

Earliest memories and the dynamics of delinquency: a replication study

A previous study of early childhood memories (EMs) with a sample of 15 delinquents and 18 nondelinquent controls successfully identified 80% of the delinquents and 100% of the nondelinquents. Our study used 71 delinquents and 71 nondelinquent controls matched for age, whereas gender (male) and geographical area were held constant. Socioeconomic status (SES) was restricted to middle class and above. Several refinements were also made to the previous EM scoring system to make it more useful to clinicians, and four EMs were elicited rather than two in the prior study. Predictive results with a discriminant analysis were consistent with those from the previous study and were highly significant--81.7% were correctly classified as delinquents and 95.8% as nondelinquents. The study effectively validates the use of the EM scoring system for this population. The results are discussed from the standpoint of the Cognitive-Perceptual approach to EMs and current models of delinquency.     

Earliest Memories and the Dynamics of Delinquency: A Replication Study

A previous study of early childhood memories (EMS) with a sample of 15 delinquents and 18 nondelinquent controls successfully identified 80% of the delinquents and 100% of the nondelinquents. Our study used 71 delinquents and 71 nondelinquent controls matched for age, whereas gender (male) and geographical area were held constant. Socioeconomic status (SES) was restricted to middle class and above. Several refinements were also made to the previous EM scoring system to make it more useful to clinicians, and four EMS were elicited rather than two in the prior study. Predictive results with a discriminant analysis were consistent with those from the previous study and were highly significant-81.7% were correctly classified as delinquents and 95.8% as nondelinquents. The study effectively validates the use of the EM scoring system for this population. The results are discussed from the standpoint of the Cognitive-Perceptual approach to EMS and current models of delinquency.     

Using subjective and objective measures to predict level of reading fluency at the end of first grade

This study compared reading rate to reading fluency (as measured by a rating scale). After listening to first graders read short passages, we assigned an overall fluency rating (low, average, or high) to each reading. We then used predictive discriminant analyses to determine which of five measures—accuracy, rate (objective); accuracy, phrasing, pace (subjective)—would best predict our fluency ratings. The objective measure of rate and the subjective measure of phrasing were clearly the best predictors, classifying approximately 90% of the cases correctly. The results support the use of reading rate as a proxy for reading fluency in first grade.     

Multiple predictors of hypnotic susceptibility

In this article, we report two experiments in which various measures thought to be related to hypnotizability were analyzed by stepwise discriminant analysis techniques. Absorption (Tellegen, 1981, 1982; Tellegen & Atkinson, 1974) and preference for an imagic style of thinking (Isaacs, 1982) were robust predictors of hypnotizability; each variable accounted for significant variance in hypnotizability at their respective steps in two samples and correctly classified a significant proportion of low- and high-hypnotizable subjects in the discriminant analyses. The addition of two other variables in Experiment 2--a Sleep-Dream score derived from Evans's (1977) Cognitive Control of Sleep Mentation subscale and Gibson's (1985) Dream Questionnaire, and the Belief in the Supernatural subscale of the Taft (1969) Experience Questionnaire--increased the correct classification of the medium-hypnotizable subjects from chance levels to 74%. It is argued that a confirmatory and hierarchical approach is needed in future studies to explore correlates of hypnotizability more fully.     

学习困难学生问题行为及其影响因素的研究

采用问卷法,探讨了学习困难学生的违纪行为、情绪困扰,情绪困扰与注意障碍的关系,以及问题行为与应激的关系.结果表明:(1)在违纪行为、注意及多动问题评定中,无论是教师评价,还是家长评定,学习困难学生(学困生)的得分均显著高于学习优秀学生(学优生);在情绪评定中,教师评价显示,学困生的情绪困扰显著高于学优生;(2)教师评价时,注意问题与情绪困扰的相关显著,但多动因子则与情绪困扰关系不大;(3)在正性应激量上,学优生高于学困生,未出现显著差异;而在负性应激量上,学困生的得分显著高于学优生;(4)负性应激量对情绪和注意问题的预测作用显著,但对违纪行为预测作用不明显,而正性应激量对情绪和注意问题以及违纪行为预测作用均不明显.     

Judgment of the credibility of rape allegations: a content analytic field experiment]

This study explores the issue of whether allegations of rape can be correctly identified as true or false on the basis of a set of content criteria used successfully in previous studies with respect to children's accounts of sexual abuse. A sample of 30 authentic protocols of police interrogations of women reporting rape were selected for the study. Fifteen cases were classified as false accounts because the complaints eventually confessed to having fabricated their allegations. The remaining cases were classified as true rapes on the basis of medical and other corroborating evidence. A group of experienced police officers (N = 30) judged these cases in terms of their credibility on the basis of the 19 content criteria suggested by Steller & K?hnken (1989) and gave an overall judgment of the true vs. false nature of each statement. A second group of police officers (N = 22) judged the credibility of the statements without reference to these criteria. The findings from a series of discriminant function analyses showed that the set of criteria as a whole is successful in distinguishing between true and false rape allegations. The results of the stepwise discriminant function analyses reveal which criteria in particular contribute to the correct identification of true and false cases. However, the higher percentage of correct classifications in the group using the content criteria was only marginally significant compared to the second group judging the cases without reference to the criteria. Altogether, the findings of this study support the basic tenet of statement analysis that the linguistic features of a statement contain essential clues for assessing its credibility.     

Academic Processing Speed Mediates the Influence of Both Externalizing Behavior and Language Skills on the Academic Skills of Students with Emotional Disturbance

The results from previous research suggest that there is a relatively small (albeit statistically significant) relationship between the externalizing behavior and academic skills of students with emotional disturbance (ED). Researchers have also found that the majority of these students have language deficits that hinder their academic performance. The purposes of this study were to investigate the mediating role of academic processing speed (i.e., academic fluency) on the relationship between: (a) The externalizing behavior and academic skills of K-12 students with ED; and (b) language skills and academic skills of students with ED. Results indicate that academic processing speed mediated the influence of both language skills and externalizing behavior on academic skills of this population. The findings, limitations, and implications were discussed.     

Construct validation of the Zimbardo Time Perspectives Inventory

The aim of the present study was to validate the factorial structure and psychometric properties of the Zimbardo Time Perspectives Inventory (ZTPI) in a South African student sample. A total of 200 students completed the ZTPI. The sample comprised 58 0.8% female students. Of these, 61.1% were black students and 38.9% were white students. The average age for the sample was 21.59 years. Exploratory and confirmatory factor analyses were used to examine the construct and discriminant validity of the ZTPI. The data suggest ZTPI to comprise four factors of Present-Fatalistic (PF), Present-Hedonistic (PH), Past-Negative (PN), and Past-Positive (PP). Many of the factors cross-loaded onto one or two others, suggesting poor differentiation in the study sample. Scores from the ZTPI were of acceptable reliability. The study results suggest the ZTPI is usable for research purposes in South Africa.