Conceptual organization and memory in nonretarded, mildly retarded, and moderately retarded adults

Moderately retarded, mildly retarded, and nonretarded adults learned a list of 12 items from three categories to a criterion of 75% correct recall in a free-recall learning paradigm. Retention was measured 1 week later. The moderately retarded took more trials and had lower retention and clustering scores than the others. The mildly retarded took more trials and had lower retention than the nonretarded. The results violate Murdock's total time hypothesis (Cooper & Pantle, 1967) but support Mandler's (1967) contention that learning is enhanced by the mental capacity for organization.     

Training profoundly retarded children to stop crawling

Many profoundly retarded children continue to crawl even though they can walk. Crawling and walking were viewed as two alternative response modes, both reinforced by movement. Children choose the one mode that is easier and faster for them. A training program was designed to increase the ease and speed of walking relative to that of crawling, and consisted of restraint-for-crawling and priming-of-walking. With the program, four retarded children reduced crawling and began to walk instead. When training was discontinued, two children with moderate walking impairment continued to walk rather than crawl. Two children with severe impairment of walking, however, required the occasional use of the restraint procedure to maintain walking as the dominant mode of locomotion. The program was easily administered, required little time, and was effective for all four children.     

Labeling, rehearsal, and short-term memory in retarded children

A short-term memory task was used to explore the effects of verbal labeling and rehearsal on serial-position recall in mildly retarded 9- to 11-year-old children. A stimulus array consisting of seven cards depicting familiar animals was presented for seven trials. In Expt I, recall when subjects labeled the pictures as they were shown was compared to recall when no labeling occurred. Total recall was not affected, but for the older CA group primacy recall was hindered and recency recall was facilitated by labeling. In Expt II, three variations of rehearsal of the names to be recalled were compared. When prompting accompanied rehearsal, recall improved at both recency and primacy positions. When prompting occurred for the primacy positions only, recall was higher for these positions but not for other positions. These results support the view that verbal skills affect recall in mildly retarded children similarly to normal children.     

Adaptive behavior of retarded,slow-learner,and average intelligence children

Scores on the WISC-R and the AAMD Adaptive Behavior Scale, Part I, Public School Version, were obtained for 94 elementary school children referred for psychological services in a southeastern rural area. Some of the adaptive behavior scores differentiated among children classified as EMR, slow-learners, or average intelligence. Some of the domain subscores of the ABS seem of questionable validity and reliability.     

Developmental differences in reactions to children labeled mentally retarded

In an attempt to examine age-related differences in response to the mental retardation label, 48 4th and 5th graders and 48 11th and 12th graders were told of a child of their own age and sex who was either labeled mentally retarded or unlabeled and who performed either competently or incompetently in giving a report. Incompetent target children were viewed more negatively than competent ones at both grade levels. The mental retardation label had less generalized impacts, leading girls but not boys (a) to cite lack of ability as the reason for a retarded child's failure, and (b) to hold low expectations that retarded targets would hold jobs, marry, or have children. A developmental shift in responses to the label was evident only on a trait perception measure; younger children stigmatized retarded targets, while older children granted special dispensation of a failing retarded child by viewing him or her more positively than a similarly incompetent but unlabeled child. Since only adolescent boys showed special dispensation, even though girls were more generally attentive to the label, both sex and age differences warrant further examination.     

Vocational counselling of mentally retarded young adults

Vocational counselling was given to a sample of mentally retarded young adults attending an Adult Training Centre. Counselling proved effective in the following areas: the dissemination of occupational information to the trainees; the development of trainees' vocational interests; the encouragement of trainees to express personal preoccupations; and the contribution to trainees' comprehension of the vocational and social aspects of their lives in the training centre. Counselling was too short to succeed in effecting a basic change of attitudes towards work. It is recommended that vocational counselling should be an integral part of any rehabilitation programme for retarded adults.     

Gradients of auditory generalization for blind, retarded children

Severely retarded, blind children were conditioned to respond differentially to two intensities of a pure tone. Gradients of auditory generalization were obtained that were reliable and similar to those for normal adults, but often asymmetric and non-monotonic.     

Behavioral expectations of retarded and nonretarded children

Two experiments were conducted to examine the effect of the mental retardation (MR) label on impression formation among retarded and nonretarded children and adolescents. The first experiment, conducted with nonretarded children in a mainstreamed school, indicated that they have pessimistic expectations of retarded children with regard to cognitive and ability-related behaviorsand, to a lesser extent, social behaviors (i.e., getting married). However, their reactions were not as pessimistic nor as “patronizing” as were those demonstrated by college students in previous research. In the second experiment, mentally retarded adolescents indicated that they also have negative behavioral expectations of retarded children, however, their self expectations were negative only for social behaviors. The results suggest that, among retarded persons, the expectations associated with the MR label are negative for social behavior, but apparently less pessimistic for cognitive and ability related tasks.     

Toilet training of normal and retarded children

Early elements in an operant chain of toilet behaviors were trained in three normal infants and five retarded children. Following that, eliminative behaviors were conditioned by operant procedures. Each child was equipped with an auditory signalling device that gave cues to the learner. Baseline behavior was recorded for a period of five days. The procedure for training consisted of two steps. First, a response was obtained through physical, verbal, and auditory prompts. Second, prompts were faded until the child responded in the presence of the auditory signal. When the device was removed the child performed without the auditory prompt. Parents were instructed in a similar procedure to enhance generalization in the home. Seven of the eight subjects reached a criterion and maintained that behavior during three criterion sessions.     

Executive processing differences between learning-disabled,mildly retarded,and normal achieving children

This study examined possible executive processing differences between mildly retarded, learning-disabled, and normal achieving children. To this end, the groups were compared as to their ability to recall central and secondary words from base and elaborative sentences under conditions of high and low encoding effort. Executive processing was inferred from the children's ability to maintain optimal recall performance for central and secondary words. Groups were comparable in central recall, but differences in secondary recall occurred for the high- effort encoding condition. Qualitative differences related to the prioritizing of resources (as reflected in the correlation between central and secondary recall) and monitoring the transfer of information (as reflected from central and secondary recall insertions) were found between groups. The results were discussed in terms of an executive processing frame-work that views retarded children as suffering from inefficiencies related to the sharing of resources, whereas the learning-disabled children's inefficiencies were related to the discrimination of resources.The author is indebted to Karl Schemdli, Director of Special Education and Susan Swaim, Research Director, University of Northern Colorado Laboratory School, for their administration assistance in providing children for this study. The author is indebted to Dr. Jim Nicholes for his assistance in the data collection.     

A comprehensive dining program for mentally retarded adults

Twenty-six types of behavior (e.g. uses fork in socially appropriate manner, chews food before swallowing) were treated in a course of independence training, using 80 institutionalized retarded adults (40 experimentals and 40 no-treatment controls). The 3-month long training phase incorporated a number of treatment components including in vivo modeling, peer social reinforcement, self-evaluation and monitoring; then a four-month follow-up. A group (i.e. experimentals and controls) by sex, by time, analysis of variance was computed with repeated measures on the last dimension (pre, post, follow-up measures = time). A significant difference was obtained between the experimentals and controls on post-test and follow-up     

Flexibility training with educable retarded children

This experiment was designed to test the hypothesis that training in perceptual and cognitive shifts would improve the performance of EMR children on flexibility measures and on the Binet and WISC scales. Twenty-eight children received 42 exercises in cognitive flexibility and were compared to a control group that was matched on mental age. Instruction facilitated performance on variables measuring verbal fluency and concept formation; however, significant improvement was generally limited to those variables which shared content with the training exercises.