EFFECTS OF HIGH-PROBABILITY REQUESTS ON THE SOCIAL INTERACTIONS OF YOUNG CHILDREN WITH SEVERE DISABILITIES

High-probability requests were used to increase social interactions in 3 young boys with severe disabilities who had been identified as severely socially withdrawn. A multiple baseline design across participants was used to evaluate the effects of high-probability request intervention on (a) social initiations, (b) social responses, (c) continued interactions, and (d) performance of high- and low-probability requests. The students were observed in a second setting to examine generalization effects across peers who did not participate in the training sequence and settings. The results demonstrated that the high-probability requests increased the students' responsiveness to low-probability requests to initiate social behavior. Increases were also found in (a) unprompted initiations and extended interactions to the training peers, (b) unprompted initiations and extended interactions to peers who were not involved in the training procedure, and (c) generalized unprompted initiations and interactions in a second nontraining setting. The students maintained increased levels of initiations and interactions after all prompts were removed from both the training and nontraining settings.     

THE EFFECTS OF ECHOLALIA ON ACQUISITION AND GENERALIZATION OF RECEPTIVE LABELING IN AUTISTIC CHILDREN

This investigation, consisting of two experiments, was designed to assess the effects of autistic immediate echolalia on acquisition and generalization of receptive labeling tasks. Experiment 1 addressed whether autistic children could use their echolalia to facilitate acquisition. The results indicated that incorporating echolalia (echo of the requested object's label) into the task before manual response (handing the requested object to the experimenter) facilitated receptive labeling. Experiment 2 was designed to determine the effects of incorporating echolalia into task response on acquisition and subsequent generalization. These results indicated that echolalia facilitated generalization for echolalic autistic children but not for functionally mute autistic children. The results of the experiments are discussed in terms of stimulus control. Additionally, it is proposed that perhaps in certain cases, echolalia should not be eliminated, but used to advantage in receptive responding.     

EFFECTS OF A MULTIFACETED TRAINING PROCEDURE ON THE ACQUISITION AND GENERALIZATION OF SOCIAL BEHAVIORS IN LANGUAGE-DISABLED DEAF CHILDREN

Effects of a multifaceted training procedure were assessed on the acquisition and generalization of social behaviors with 9 language-disabled deaf children. The training procedure consisted of (a) child training and (b) supervision, feedback, and goal setting directed by teachers and residential staff. Target behaviors were turn waiting, initiating interaction, and interacting with others. Procedures to promote generality of effects and to determine the social validity of the procedures were used. Data were collected within a multiple baseline design across behaviors. Results showed a functional relationship between introduction of the training procedure and increases in percentage of appropriate target behaviors for all 9 children. The effects were maintained throughout a 5- to 10-week follow-up period.     

THE EFFECTS OF VICARIOUS PROMPTING ON ATTENTIVE BEHAVIOR OF CHILDREN WITH BEHAVIOR DISORDERS

Vicarious prompting, reinforcing and labelling the appropriate behavior of a nontarget child contingent on inappropriate behavior of a target child, was assessed in two classrooms of children with behavior disorders. Vicarious prompts using social reinforcement alone were clearly effective in increasing the attentive behavior of one target child in Experiment 1. The children in Experiment 2, however, did not appera to be responsive to vicarious prompting. Comparison of the two groups suggests that vicarious prompting, a relatively subtle, indirect control technique, may be a low cost, positive, and effective alternative to other techniques under conditions in which the behavior of most of the group is attentive.     

ACQUISITION OF SIGN LANGUAGE BY AUTISTIC CHILDREN II: SPONTANEITY AND GENERALIZATION EFFECTS

Autistic children typically do not use their language repertoire in order to communicate. Six autistic children who exhibited poor communication skills were trained to use their sign repertoire to make spontaneous requests of adults. Training consisted of imitative prompting, fading, and differential reinforcement, and included aspects of incidental teaching. The children displayed an increase in the rate and variety of spontaneous sign requests (Experiment 1). Generalization of spontaneity across adults (Experiments 1 and 2) and settings (Experiment 2) was also observed. We suggest that spontaneity may be facilitated when language is brought under the control of broadly defined stimuli such as adult attention rather than narrowly defined stimuli such as the presence of specific objects or verbal prompting in the form of questions. Finally, response generalization was observed as well (Experiment 1). Specifically, as spontaneity increased, self-stimulatory behavior decreased. This result may be accounted for in terms of reinforcer competition, reinforcer consistency, or discriminative stimulus effects.     

EFFECTS OF DIFFERENTIAL REINFORCEMENT ON THE GENERALIZATION OF A REPLACEMENT MAND IN THREE CHILDREN WITH SEVERE LANGUAGE DELAYS

We investigated variables that may influence the generalization of a replacement mand in 3 young children with severe language delays. A multiple baseline design consisting of one stimulus class of manding opportunities that we arbitrarily divided into three categories (i.e., food, toys, and events) was used for each child. During baseline probes, all children manded mainly by reaching, grabbing, or leading. We then taught each child a replacement mand using a single member of the stimulus class. Acquisition of the replacement mand occurred under highly restricted conditions in a setting that was completely isolated from the generalization settings. Postacquisition probes revealed almost exclusive use of old manding forms. Subsequently, extinction of the old forms and reinforcement of the replacement mand were introduced in a sequential fashion. Two children manifested a substantial increase, and 1 child displayed a moderate increase in the occurrence of the replacement mand (i.e., generalization occurred). These results suggest that a differential reinforcement procedure can alter the probability of the occurrence of response class members across a variety of stimulus conditions.     

ACQUISITION,GENERALIZATION, AND MAINTENANCE OF QUESTION-ANSWERING SKILLS IN AUTISTIC CHILDREN

We conducted an investigation to evaluate the effects of a training strategy for teaching autistic students generalized responses to three forms of wh— questions (what, how, and why). Students were taught, using modeling and reinforcement procedures, to answer questions with magazine pictures as the referents. Each question form was divided into two or more subcomponents reflective of common social usage and was taught within the context of a modified multiple probe design across subcomponents. Following acquisition of each subcomponent, generalization to natural context and storybook questions was assessed; additional probes were conducted to assess responding over time and whether acquisition of responses to questions promoted question-asking skills. Results showed that the picture training procedure was effective in teaching a generalized response to questions for which the relevant cue was visible, whereas specific generalization programming was required for situations in which the relevant cue was not visible. All acquired responses were durable over time.     

GENERALIZATION OF NAMING RESPONSES TO OBJECTS IN THE NATURAL ENVIRONMENT AS A FUNCTION OF TRAINING STIMULUS MODALITY WITH RETARDED CHILDREN

Picture-cards, photographs, and real objects were compared as training stimuli in order to determine which best facilitated the generalization of naming responses learned in a special training room to real objects in the natural environments of four retarded children. The amount of transfer of naming behavior between the three stimulus modes and the average amount of training time required per stimulus mode were also assessed. Three of the four children displayed considerably more generalization to the real objects in the natural environment when they were trained with real objects. The fourth child displayed substantial generalization regardless of the training stimulus mode. No particular training stimulus mode clearly facilitated the transfer of naming responses to other modes or greatly reduced training time. The results of two supplementary procedures conducted with one child showed that: (1) training in several environments facilitated generalization to real objects in the natural environment when real objects were used as training stimuli but not when picture-cards were used, and (2) transfer from picture-cards to real objects was facilitated by training other picture-cards and the real objects portrayed by them at the same time.     

ASSESSING AND TRAINING TEACHERS IN THE GENERAUZED USE OF BEHAVIOR MODIFICATION WITH AUTISTIC CHILDREN1

This study investigated the feasibility of developing reliable, valid criteria for measuring and training the skills necessary to teach autistic children. The behaviors of 11 teachers and 12 autistic children were recorded in a series of different teaching situations. Teacher-training was initiated at different times for different teachers. The results showed: (1) it was possible to assess empirically whether a teacher was correctly using defined behavior-modification techniques; (2) generally, for any given session, systematic improvement in the child's behavior did not occur unless the teacher working in that session had been trained to use the techniques to a high criterion; (3) all 11 teachers were rapidly trained to use these techniques; and (4) the teachers learned generalized skills effective with a variety of children and target behaviors.     

THE ACQUISITION OF PREPOSITIONAL MOTOR RESPONSES IN HANDICAPPED CHILDREN1

The acquisition of prepositional motor responses in three handicapped preschool children was analyzed for three pairs of prepositions. Generalization of prepositional knowledge at each stage of acquisition was assessed by a series of probe trials. In addition, an analysis of the control of prepositional responses when objects of the preposition (OP) and direct objects (DO) were relevant cues was conducted. The effect of this object-cue procedure, as well as a specially devised prompting technique on acquisition, was also determined. Results indicated substantial control by OPs whenever this cue was relevant, but this did not affect acquisition of prepositional concepts when these cues were eliminated. Analysis of the probe data and the prompting technique suggested various ways in which instructional programs for teaching prepositional knowledge to handicapped children could be constructed in a simple and efficient manner.     

TRAINING AND GENERALIZATION OF REACH-GRASP BEHAVIOR IN BLIND,RETARDED YOUNG CHILDREN

The effects of a graduated prompting treatment procedure were analyzed in three phases of an experiment on the training and generalization of reaching-grasp responding in 2- to 4-year-old blind, severely or profoundly retarded children. In Phase 1, we used a multiple-baseline across-subjects design to investigate the effectiveness of the treatment on midline reach-grasp responding. In Phase 2, we used a reversal design to investigate the effects of repeated implementations and withdrawals of the treatment. In both phases, generalization to right and left positions was measured. In Phase 3, in a multiple-baseline across-responses design, the treatment was implemented in right and left positions. Also in Phase 3, shift of stimulus control from toy-sound to verbal instructions was measured. The results showed that (a) the graduated prompting procedure was effective in training reach-grasp responding in all three children; (b) for one child, the effects were durable over repeated applications of the treatment procedure, but were not maintained during withdrawals; (c) for another child, the treatment procedure was effective in teaching reach-grasp responding in all three positions; and (d) for the same child, training of reach-grasp responding generalized to toys presented without sound, given only the verbal instruction.     

INCREASING COMPLIANCE WITH MEDICAL PROCEDURES: APPLICATION OF THE HIGH-PROBABILITY REQUEST PROCEDURE TO A TODDLER

The effects of high-probability (high-p) requests on compliance with low-probability (low-p) responses have received increased attention from applied investigators. This study examined the effects of a high-p procedure on a toddler's compliance with medical procedures. Compliance to low-p requests occurred more frequently following compliance to high-p requests, suggesting that this procedure may be useful across different topographies of compliance.     

ACQUISITION AND GENERALIZATION OF COMPLIANCE WITH COMPLEX FIVE-COMPONENT INSTRUCTIONS1

A 7-yr-old bilingual boy of normal intelligence, judged by his school to be deficient in carrying out complex requests, was trained to comply with five-component instructions, e.g., “Give me/the chip/behind/the block/on blue”. Three interchangeable words or phrases were used for each component. Training proceeded in stages. First, the child was trained to identify all individual objects and actions; then to carry out requests involving only the first component, then the first two, then three, etc. On every trial, the visual setting permitted every possible response in the set. A test for generalization to nonreinforced instructions was given at each stage by giving no feedback for all instructions that included one preselected phrase. The phrase selected at each stage was one of the three that was introduced at that stage. As a further test for generalization, nonreinforced instructions were also given that included one additional component: the next to be trained (Probes Ahead). As a test for generalization across settings and instructions, several five-component instructions were presented each session in an unused classroom. These instructions used phrases, most of which were different from those being trained, and which referred to familiar classroom objects. Results showed: acquisition occurred for each stage of training, including the full five-component instruction; almost complete generalization of responding occurred to the subset of nonreinforced instructions; little or no generalization occurred to the Probes Ahead, where an additional untrained component was included; and little or no generalization was seen to the five-component classroom instructions, until training began on the five-component instructions in the training sessions. Performance was also examined for each component. Results showed that when a new component was introduced, correct performance to previously trained components declined, and was little if any superior to performance on the new component. In summary, transfer was found to untrained sentences of the same form as those being trained, even in another setting, where most of the components were different; but poor transfer was found to more complex sentences, and performance declined for previously trained components during training of a more complex sentence. Some features of the training procedure that may have affected the degree and form of transfer were discussed: the necessity for prior training in an appropriate response to the component phrases, the importance of intermixing of reinforced and nonreinforced trials, and the effects of the abruptness with which more complex sentence forms were introduced.     

ANALYSIS OF A HIGH-PROBABILITY INSTRUCTIONAL SEQUENCE AND TIME-OUT IN THE TREATMENT OF CHILD NONCOMPLIANCE

This study evaluated the effectiveness of high-probability requests and time-out as treatments for noncompliance that appeared to be maintained by contingent attention in 2 developmental normal children. The introduction of high-probability requests increased compliance for 1 child but not the other. Time-out was effective with both children, and improvements in compliance were maintained at an 8-week follow-up.     

关于听觉障碍儿童人格的一项研究

用缺陷儿童人格诊断量表和内田-克雷佩林心理测验对213名听觉障碍儿童进行测查,揭示了听觉障碍儿童人格发展的一些基本状况,以及影响他们人格发展的一些因素,研究表明,听力损失程度、父母是否听觉障碍、以及家庭（城乡）环境等因素对听觉障碍儿童的人格发展有显著的影响。     

GENERALIZATION OF THE EFFECTS OF TEACHER- AND SELF-ADMINISTERED TOKEN REINFORCERS TO NONTREATED STUDENTS

Ten, black, second-grade boys served in a series of single-subject studies. They were from poor families, did not do well in arithmetic, were deficient in sustained attention, and presented behavior problems at school. One boy was a therapeutic confederate. Of the remaining nine nontreated students, three observed the confederate reinforced by a teacher, three observed the confederate self-reinforce without having an opportunity to use “self-reinforcement” themselves, and three observed self-reinforcement while having an opportunity to use “self-reinforcement.” The target behavior was attending. Other measures of outcome were glancing, academic achievement, and accuracy of reinforcement. The basic experimental design consisted of an ABAB withdrawal applied to the confederate while the nontreated students remained on baseline. Generalization was expressed as a ratio (i.e., percent change in the generalization measure divided by percent change in the target behavior). Teacher-administered reinforcers to the confederate did not produce generalization of any kind. Both arrangements of self-administered reinforcers to the confederate produced across-subjects generalization and subject-response generalization. Additionally, the confederate manifested response generalization.     

ACQUISITION AND CROSS-SETTING GENERALIZATION OF MANUAL SIGNS WITH SEVERELY RETARDED INDIVIDUALS

In this study, we assessed the effect of a transfer of stimulus control procedure on the acquisition and cross-setting generalization of manual signs with four profoundly retarded individuals. Two individuals were trained to produce appropriate signs to verbal instructions, whereas the other two were trained until manual signs were controlled by visual stimuli (objects). Data obtained from three probe situations (two for one individual) constituted the dependent variables of the investigation. The results, gathered within a multiple-baseline design across signs showed that (a) individuals acquired the trained signs and (b) maintenance and generalization across settings (classroom, ward) and persons (teachers, ward staff) occurred, but was highly variable between and within individuals.     

TEACHING THE HANDICAPPED TO EAT IN PUBLIC PLACES: ACQUISITION,GENERALIZATION AND MAINTENANCE OF RESTAURANT SKILLS

This study examined classroom-based instruction in restauranting skills for handicapped persons. Three male students were taught each of four skill components in sequential order: locating, ordering, paying, and eating and exiting. Training was implemented in a multiple baseline design across subjects and consisted of modeling and role playing in conjunction with photo slide sequences and a simulated ordering counter. The use of a menu containing general item classes and a finger matching procedure for identifying errors in the delivery of change greatly reduced the reading and math skills necessary to enter and complete the program. Periodic probes were conducted in a McDonald's restaurant prior to, during, and up to one-year following the termination of training. In addition, two probes (overt and covert observation) were conducted in a Burger King restaurant to assess further generalization to a location different from the one depicted throughout training. Results showed that students' performance on restaurant probes improved as a result of training, generalized to novel settings, maintained over an extended period of time, and was comparable to that of a normative sample of nonretarded persons.     

GENERALIZATION BY AUTISTIC-TYPE CHILDREN OF VERBAL RESPONSES ACROSS SETTINGS

Generalization of verbal behavior by autistic-type children across physically different settings was assessed. Four boys learned responses to common questions in two settings at school and were probed to determine transfer of learning to home. Three of the children demonstrated little generalization to home when trained in a cubicle. Greater generalization was indicated when they received training at varied locations. The fourth child generalized most responses to his home regardless of training setting. Simple manipulations of the school environment to more closely simulate home conditions may facilitate transfer of training to the natural environment.     

MOMENTUM VERSUS EXTINCTION EFFECTS IN THE TREATMENT OF SELF-INJURIOUS ESCAPE BEHAVIOR

An individual's self-injurious escape behavior was treated using a high-probability instructional sequence with and without extinction. When presented alone, the high-probability sequence did not reduce self-injurious behavior. When escape extinction was implemented either alone or in combination with the high-probability sequence, self-injury decreased and compliance increased, suggesting that extinction may be a necessary component of the treatment for behavior problems maintained by escape.