Operant conditioning procedures were applied to two retardates to establish receptive auditory plurals: correct pointing to single or paired objects was reinforced after hearing singular or plural labels. This training proceeded until an errorless (generative) criterion of correct performance was achieved. Unreinforced probes measuring expressive use of singulars and plurals were interspersed in this receptive training. Neither subject generalized from this receptive training to expressive plurals, in that each used singulars when labeling pairs. Then, both subjects were directly trained in conventional expressive plurals to an errorless (generative) criterion. The previous design was then repeated, but the receptive repertoire was reversed: pointing at pairs in response to singular labels was reinforced, and vice-versa. Unreinforced probes of expressive plural usage again showed its independence of the current receptive repertoire in that conventional (unreversed) plural usage was displayed. Thus, the independence of the expressive repertoire (even when unreinforced) from the reinforced patterns of the receptive repertoire was demonstrated.
This article provides a case study (focus on an eighth-grader with autism) within a case study (focus on an urban middle school) in terms of the implementation of positive behavior support (PBS). Information is provided on the characteristics of three key components of schoolwide PBS-universal support, group support, and individual support. For each component, information is presented on policy, assessment, and intervention in terms of an evolving approach to schoolwide PBS with descriptions of how the components were implemented at the middle school with a particular emphasis on the eighth-grade student. The authors conclude with implications for practice in terms of assessing current resources, providing professional development, and intensifying universal support within urban schools to address some of the complex issues associated with poverty.
Operant conditioning procedures were used to establish a generative use of the plural morpheme in the speech of a severely retarded girl. During training trials, reinforcement was presented contingent upon correct imitation of singular and plural verbalizations by the experimenter, in response to objects presented to the subject singly and in pairs. A generative productive plural usage resulted, the girl correctly labeling new objects in the singular or plural without further direct training relevant to those objects. After establishing the singular/plural usage, the contingencies were reversed (reinforcement of plural responses to single objects, and vice-versa). This produced a corresponding reversal of response by the child. The original usage was then recovered by returning to the previous contingencies. A second experiment analyzed certain error responses occurring during the first experiment, and further probed the generative nature of the subject's plural usage. It was found that errors were somewhat more likely to occur in the pluralization of words ending in vowels than of words ending in consonants. Furthermore, several words whose plurals had been learned according to the reversed plural rule, when examined later during reinforcement of normal plural usage, were found then to exemplify the normal rule being reinforced, yet without direct training.
Classroom observations were made on staff and stu dents with severe disabilities to record opportunities to express preferences and make choices. Included in the study were 48 staff members and 37 students located in public schools, institutions, and university demonstra tion sites. An observational code was used to record staff-and student-initiated expressions of preference and choice in structured and nonstructured classroom activ ities. Results indicated that, regardless of age level or setting, classroom staff responded at very low rates to student-initiated expressions of choice or preference and that staff-initiated opportunities for student expressions of choice or preference were significantly higher in the 0 to 5 age range. Additional findings indicated that staff and students used distinctly different response modali ties to communicate. Results are discussed in relation to the development of communication and social skills, with implications for current educational practices, per sonnel training, and further research.
Retarded subjects were taught generative pluralization rules concurrently in both the receptive and productive modalities of language. Receptive training established correct pointing to either one or a pair of objects, in response to a spoken singular or plural label of the object(s); productive training established correct spoken labels of one or a pair of objects presented visually. However, these pluralization rules were established in each modality only for a specific class of plurals: those ending in -s for one modality, those ending in -es for the other modality. This training was successful in establishing generative, or rule-governed behaviors, such that untrained examples of singulars and plurals were usually responded to correctly. Nevertheless, despite this concurrent, generative behavior, probes revealed little generalization between modalities: three of four subjects did not generalize clearly from receptive training with one class of plurals to correct productive use of that class, nor did they generalize from productive training of the other class of plurals to correct receptive response to that class. The fourth subject, however, did show strong generalization of both these types. It was concluded that automatic generalization between receptive and productive language is not necessarily an inevitable result of language training in such subjects, and therefore may require explicit, if temporary, programming, such as by direct reinforcement.Normative studies of language development usually suggest that auditory comprehension (reception) precedes productive speech-i.e., a child learns first to respond to speech and later to express himself in speech.
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