EFFECTS OF VIDEO-ASSISTED TRAINING ON EMPLOYMENT-RELATED SOCIAL SKILLS OF ADULTS WITH SEVERE MENTAL RETARDATION

Two studies investigated effects of video-assisted training on employment-related social skills of adults with severe mental retardation. In video-assisted training, participants discriminated a model's behavior on videotape and received feedback from the trainer for responses to questions about video scenes. In the first study, 3 adults in an employment program participated in video-assisted training to request their supervisor's assistance when encountering work problems. Results indicated that participants discriminated the target behavior on video but effects did not generalize to the work setting for 2 participants until they rehearsed the behavior. In the second study, 2 participants were taught to fix and report four work problems using video-assisted procedures. Results indicated that after participants rehearsed how to fix and report one or two work problems, they began to fix and report the remaining problems with video-assisted training alone.     

ASSESSMENT OF STIMULI CONTROLLING THE REQUESTS OF STUDENTS WITH SEVERE MENTAL RETARDATION DURING A SNACK ROUTINE

This study assessed stimuli controlling requests during a snack routine after extensive request training with a delayed prompt procedure. During training sessions, one of three three-item snack groups was presented to 3 subjects with severe mental retardation. Assessment sessions involved (a) training conditions (all items were visible), (b) presenting two of three items from a particular group, or (c) presenting no items. One subject requested food items when no food items were present, 2 frequently requested a missing item when the two other items were visible, and all subjects requested visible items. Procedures for assessing stimulus control, such as those described in the current paper, should lead to a better understanding of the variables controlling behaviors that initially appear perplexing and unpredictable.     

THE EFFECTIVENESS OF A CONSTANT TIME-DELAY PROCEDURE TO TEACH CHAINED RESPONSES TO ADOLESCENTS WITH MENTAL RETARDATION

The effectiveness of a 5-s constant time-delay procedure to teach three chained food preparation behaviors to four moderately retarded adolescent students was evaluated within a multiple probe design across behaviors. Results indicate that the procedure was effective in teaching all four students to make a sandwich, boil a boil-in-bag item, and bake canned biscuits. The skills maintained with at least 85% accuracy over a 3-month period. Training generalized from the school to the home setting for the 2 subjects that completed generalization probe sessions. The percentage of errors across all skills and students was less than 9%.     

MEASURING AND INCREASING THE HAPPINESS OF PEOPLE WITH PROFOUND MENTAL RETARDATION AND PHYSICAL HANDICAPS

Applied research in mental retardation has focused on skill training and education to the relative neglect of measuring and increasing happiness in the lives of people with mental retardation. Here we report the results of four preliminary studies that were conducted to develop and demonstrate methodologies for measuring happiness in people with profound mental retardation and other severe handicaps. These results suggest that: (1) facial expressions can provide a valid measure of happiness, and can be measured reliably by relatively untrained observers; (2) the rate of spontaneous smiling is highly variable across individuals; (3) some individuals’ happiness can be increased dramatically by very simple social interactions; and (4) clients’ differential emotional reactions to various caregivers may be useful in tracking the development of social relationships. Suggestions for future research include systematic replication of these preliminary findings with a larger number and variety of subjects, and demonstration of how these measures can be applied to quality assurance systems.     

THE EFFECTS OF MODELLING ON THE CONTINGENT PRAISE OF MENTAL RETARDATION COUNSELLORS

A multiple-baseline design was used to evaluate the effects of a simple modelling procedure on the contingent praise of five counsellors while they conducted hygiene-training sessions in toothbrushing and hand-and-face washing with severely retarded children. After varying numbers of baseline sessions, each counsellor watched a model who conducted a series of toothbrushing sessions, in which he conspicuously praised correct toothbrushing responses and approximations to correct responses. No modelling occurred during hand-and-face washing sessions. As a result of several exposures to the model's performance, levels of response-contingent praise provided by four of the five counsellors during toothbrushing sessions increased sharply over baseline. The levels of counsellor praise showed parallel increases during hand-and-face washing sessions. A two-week followup showed that the levels of praise obtained through modelling were maintained in the model's absence.     

SEPARATE AND COMBINED EFFECTS OF METHYLPHENIDATE AND A BEHAVIORAL INTERVENTION ON DISRUPTIVE BEHAVIOR IN CHILDREN WITH MENTAL RETARDATION

We investigated the separate and combined effects of a behavioral intervention and methylphenidate (Ritalin®) on disruptive behavior and task engagement in 3 children with severe to profound mental retardation. The behavioral intervention involved differential reinforcement of appropriate behavior and guided compliance. All 3 children demonstrated decreased disruptive behavior and improved task engagement in response to the behavioral intervention. Two of the 3 children demonstrated similar improvement in response to methylphenidate. Although both interventions were highly effective for these 2 participants, the relative efficacy of the interventions varied between the 2 children. There was no evidence of an additive or synergistic effect of the two interventions, but the high efficacy of each intervention alone limited our ability to detect such effects.     

A COMPARISON OF A DISADVANTAGED SAMPLE WITH A NATIONAL SAMPLE ON THE GATB

The GATB is widely used in making vocational decisions. The norms are based on a national sample tested in 1952. In the study reported here the GATB results of a sample of disadvantaged individuals were compared to the results of the 1952 sample. Significant differences were obtained for five variables: name comparison, computation, vocabulary, tool matching, and arithmetic reasoning. In each case the scores of the national sample were higher. The differences occurred on variables of an academic nature, although mean education was approximately the same in both samples. Some reasons for the differences are suggested in this article.     

THE REDUCTION OF SELF INJURY IN TWO ADOLESCENTS WITH PROFOUND RETARDATION BY THE ESTABLISHMENT OF A SUPPORTED ROUTINE

Two experiments applied a conceptualization of competence to the treatment of self injury in two adolescents with profound retardation. In Experiment 1, a multiple baseline design across two activity periods was used to assess the effects of reinforcing completion of a five-step packaging routine on repetitious facial hitting in one participant. The rate of facial hits decreased when teachers reduced the latency between a pause by the participant and a prompt from the teacher to continue, pauses having been observed to be followed often by sequence errors, and sequence errors by facial hitting. In Experiment 2, a reversal design was used to compare the effects on head hitting and hand biting by substituting a premeal and dining routine in a second participant. The new routine replaced a largely instructional routine that required discriminations, receptive language, and motor performances not likely to emerge in the participant's repertoire. Discontinuation of the instructional routine reduced self injury; institution of the new routine permitted the development of a highly independent series of performances without reoccurrence of self injury. The combined results of the two experiments point to the potentially evocative nature of common teaching approaches and techniques, and the habilitative effects of designing performance expectations with greater prognosis for acquisition.     

ACCULTURATION AND EATING DISORDERS IN A MEXICAN AMERICAN COMMUNITY SAMPLE

Our purpose was to investigate acculturation and eating disorders by examining the role of ethnic identity and by utilizing a bidimensional perspective toward two cultures. We predicted that orientation toward European American culture and lower ethnic identity would be positively associated with eating disorders. Participants were 188 Mexican American women recruited from the community (79 with eating disorders and 109 control women). The Structured Clinical Interview for DSM-IV-TR and Eating Disorder Examination were used to establish diagnoses. The Acculturation Rating Scale for Mexican Americans–II and the Multigroup Ethnic Identity Measure assessed Anglo orientation, Mexican orientation, and ethnic identity. Orientation toward Anglo American culture was significantly associated with eating disorders, whereas orientation toward Mexican culture and strength of ethnic identity were not associated with eating disorder status. Findings point to the role of Anglo cultural orientation in the development of eating disorders and underscore the need for future research to utilize bidimensional models.     

CO-WORKER IMPLEMENTED JOB TRAINING: THE USE OF COINCIDENTAL TRAINING AND QUALITY-CONTROL CHECKING ON THE FOOD PREPARATION SKILLS OF TRAINEES WITH MENTAL RETARDATION

In two studies, co-workers of persons with disabilities were taught to use coincidental training procedures while completing their own jobs. In Study 1, the effects of coincidental training on the salad-making skills of 3 trainees with mild and moderate mental retardation were evaluated. Coincidental training by co-workers resulted in improved accuracy of the salad-making skills of the trainees. In Study 2, trainees were also coincidentally taught to make quality-control checks of their salads. An alternating treatments and multiple baseline design indicated that the trainees more readily acquired the skills when taught to check the correctness of their work.     

THE CONCEPT OF CORRELATION IN ADULTS

In the first of two experiments on the concept of correlation in adult subjects, the subjects' frequency estimates and inferences of relationship were studied relative to five different 2 × 2 distributions, each presented in a fixed sequence. In experiment II, the subjects' spontaneous strategies in subdividing and analyzing one 2 × 2 distribution were studied in a free situation. It is concluded that adult subjects with no statistical training apparently have no adequate concept of correlation (based on the ratio of the two pairs of diagonal frequencies), and that, in so far as they reason statistically at all, they tend to depend exclusively on the frequency of ++ cases in judging relationship. The need for studies involving ordinal scale and fully quantified variates is stressed.     

TEACHING ADULTS WITH SEVERE AND PROFOUND RETARDATION TO EXIT THEIR HOMES UPON HEARING THE FIRE ALARM

Prompting, modeling, and differential reinforcement with client-chosen rewards were used to teach 3 nonverbal people with severe to profound mental retardation to exit their group homes at the sound of the house fire alarm, using a multiple baseline design. All 3 participants learned to exit independently in less than 2 min in all experimenter-initiated surprise fire drills and in the majority of staff-initiated surprise fire drills. Each participant was also able to exit from five areas of the house from which teaching was not done.     

GENERALIZED LANGUAGE LEARNING BY CHILDREN WITH SEVERE MENTAL RETARDATION: EFFECTS OF PEERS' EXPRESSIVE MODELING

In this study, we investigated the conditions that contribute to observational learning of generalized language in children with severe mental retardation. Matrix-training strategies were used to teach 6 children with mental retardation to combine known words into two- or three-word utterances consistent with syntactic rules. Subsequently, the children learned two or more unknown words concurrently, inducing word-referent relations consistent with these word order rules. Generalized learning of responses not taught directly was shown to be under experimental control using a multiple baseline design across submatrices. Expressive modeling of only four or five responses was sufficient to promote recombinative generalization in the expressive and receptive modalities. Thus, 95% to 98% of subjects' learning was attributed to generalization processes. This study demonstrates how the efficiency of language training with children with mental retardation might be enhanced by coupling observational learning and matrix-training strategies.     

成年人分类概括力水平的年龄差异及其与记忆的关系

采用威斯康星卡片分类测验（Ｗｉｓｃｏｎｓｉｎｃａｒｄｓｏｒｔｉｎｇｔｅｓｔ,ＷＣＳＴ）对青年组（２０—２５岁）、老年组（６０—６５岁）和老老年组（７０—７５岁）共９０例被试进行分类概括力水平测试,并在结束测试时询问被试与测试有关的几个问题。结果显示：青年组分类概括力水平明显高于老年组;坚持性错误数、非坚持性错误数和总错误数以及坚持性反应数,青年组明显少于老年组;完成作业平均用时间,青年组明显比老年组短;老老年组ＷＣＳＴ多数项目的成绩明显高于老年组;分类概括力水平与记忆密切相关;某些元认知项目与分类概括力水平表现出一致的趋势。     

INCREASING SELF-DETERMINATION: TEACHING PEOPLE WITH MENTAL RETARDATION TO EVALUATE RESIDENTIAL OPTIONS

The community living preferences of 4 institutionalized adults with mild mental retardation were identified using photographs that depicted a variety of residential characteristics. Individuals then were taught to obtain information regarding their preferences during tours of community group homes, to report that information to their social worker, and to evaluate the homes based on the information obtained. A multiple baseline across participants design showed that all 4 participants substantially increased their skills at asking questions, reporting information, and evaluating homes. The results indicate that people with mental retardation can take an active role in major lifestyle decisions that others have typically made for them.     

THE EFFECTIVENESS OF ERROR MANAGEMENT TRAINING WITH WORKING-AGED ADULTS

Low structure training that includes instructions about the benefits of errors typically enhances learning for college-student samples. Changes in abilities and skills that occur with age suggest that these findings may not necessarily generalize to working adults. Three training conditions, varying in structure and instructions, were examined in a sample of working-aged adults (N = 161, M_age= 39.7 years). Significant main effects of condition, cognitive ability, and age were found for training performance. An age × cognitive ability × error management instruction interaction indicated that error management instructions in high structure training were beneficial for older learners, especially when higher in ability. The importance of examining aptitude–treatment interactions in training research with working-aged adults is highlighted.     

STRATEGIES TO INCREASE EXERCISE-REPORT CORRESPONDENCE BY BOYS WITH MODERATE MENTAL RETARDATION: COLLATERAL CHANGES IN INTENTION-EXERCISE CORRESPONDENCE

Correspondence between verbal and nonverbal behavior in an exercise room was taught to 4 13-year-old boys diagnosed with moderate mental retardation. Participants were asked prior to each exercise session which exercise machine(s) they intended to use. No contingencies on stating intentions (promising) were applied. Following the exercise session, participants were asked to say (report) which machine(s) they had used. Following the baseline condition, do-report correspondence training was introduced sequentially across participants. During do-report correspondence training, accurate reporting was reinforced. High rates of both do-report and promise-do correspondence were observed. Data were analyzed via a multiple baseline across subjects design and contingency-space analysis. Results are discussed with regard to observed changes in promise-do correspondence subsequent to observed changes in do-report correspondence.     

USING SELF-MANAGEMENT PROCEDURES TO IMPROVE THE PRODUCTIVITY OF ADULTS WITH DEVELOPMENTAL DISABILITIES IN A COMPETITIVE EMPLOYMENT SETTING

This study describes the use of self-management procedures, similar to those proposed by Lagomarcino, Hughes, and Rusch (1989), to improve the productivity of 2 women with mild mental retardation who worked in restaurants. Substantial improvements were observed as a function of treatment, and the procedures were deemed acceptable by the participants, their coworkers, and their supervisors.