Public transportation training: in vivo versus classroom instruction

This study evaluated a classroom program to teach public transportation usage (bus-riding skills) to retarded persons. Based on a task analysis of specific skills, five retarded male students were taught each of the components of locating, signalling, boarding and riding, and exiting a bus. These skills were taught sequentially, using training procedures consisting of role playing, manipulating the actions of a doll on a simulated model, and responding to questions about slide sequences. Before, during, and after training, subjects were tested on generalization probes in the classroom and in the natural environment. Results of a multiple-baseline design across subjects indicated that up to 12 months after termination of training, each subject exhibited appropriate bus-riding skills on actual city buses. Two other subjects were trained on each skill component in vivo, on city buses, in order to compare the relative effectiveness and efficiency of classroom versus in vivo training. Both of these subjects acquired appropriate bus-riding skills; however, the in vivo training procedure was both more time consuming and expensive than classroom training. These findings further demonstrate the effectiveness and practicality of properly designed classroom training procedures for teaching community survival skills to retarded persons.     

Generalization of parent-training results

Two experiments were conducted to assess the generalized effects of several different parent/teacher training programs. In Experiment I it was found that a brief demonstration of how to teach an autistic child new behaviors was sufficient to teach parents how to teach those children those behaviors. However, generalization to new child-target behaviors did not take place. Another parent training program, which did not demonstrate how to teach any one specific child behavior, but was based on teaching the use of general behavior-modification procedures, was effective in teaching the parents how to teach new child-target behaviors. Experiment II then provided analyses of the individual effects of several components of the generalized training program. The results showed that videotape illustrations of the procedures, without the presence of a master teacher, were sufficient to teach the adults. However, sub-parts of the videotapes produced highly specific training results, with each component changing corresponding areas of the adults' behaviors. Viewing of the entire package was necessary before the adults were able to improve the autistic children's behaviors. The study as a whole suggests the importance of obtaining multiple measures of the effects of parent and teacher training programs, including measures of acquisition and generalization of both adult and child behaviors.     

TEACHING SEVERELY MULTIHANDICAPPED STUDENTS TO PUT ON THEIR OWN HEARING AIDS

Two experiments were conducted with six severely multihandicapped students with hearing impairments to: (a) train the six students to put on their own hearing aids independently, and (b) provide an empirical evaluation of a comprehensive instructional program for putting on a hearing aid by assessing acquisition, maintenance, and generalization of that skill across environments. All six students acquired the skill rapidly, with two students requiring remedial training on one step of the program. Because for two of the original three students the newly learned skill failed initially to generalize to other environments, a second experiment was initiated to assess generalization across environments as well as to replicate the efficiency of the acquisition program. When a variation of the multiple-probe baseline technique was used, the behavior of three additional students generalized to other settings without direct training in those settings.     

A clarification of continuous repertoire development

The key-peck response of five pigeons was reinforced on a schedule whenever the interval between pecks at two response keys was between 1.0 and 2.33 seconds in the presence of a 2,500-Hertz tone or between 4.66 and 6.0 seconds in the presence of a 1250-Hertz tone. There was no tendency for responses of intermediate duration to occur when test tones of intermediate frequency were presented. This result clarifies a previous finding using a similar procedure but with a visual intensity stimulus dimension.     

Does calling it “Morgan's way” reduce student learning? Evaluating the effect of person-presentation during comparison and discussion of worked examples in mathematics classrooms

Mathematics textbooks sometimes present worked examples as being generated by particular fictitious students (i.e., person-presentation). However, there are indicators that person-presentation of worked examples may harm generalization of the presented strategies to new problems. In the context of comparing and discussing worked examples during extended classroom instruction, the current study compared the impact of person-presentation to strategy labels on students' posttest accuracy and ratings of strategy generalizability. Five algebra teachers and their 168 students used worked examples either presented using fictitious students or with a strategy label during a multiweek unit on equation solving, with teachers randomly assigned to condition. All students compared and discussed the worked examples. In this context, we found no effect of condition on student accuracy at posttest, nor on their ratings of the generalizability of the presented strategies. We discuss why previously found negative effects of person-presentation may not have extended to this context.     

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.     

ELIMINATION OF ECHOLALIC RESPONDING TO QUESTIONS THROUGH THE TRAINING OF A GENERALIZED VERBAL RESPONSE

Echolalia, the parroting of the speech of others, is a severe communication disorder frequently associated with childhood schizophrenia and mental retardation. Two echolalic children, one schizophrenic and one retarded, were treated in a multiple-baseline design across subjects. Each child was taught to make an appropriate, nonecholalic verbal response (i.e., “I don't know”) to a small set of previously echoed questions. After such training, this response generalized across a broad set of untrained questions that had formerly been echoed. The results obtained were the same irrespective of the specific experimenter who presented the questions. Further, each child discriminated appropriately between those questions that had previously been echoed and those that had not. Followup probes showed that treatment gains were maintained one month later. The procedure is economical, in that it produces a rapid and widespread cessation of echolalic responding.     

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.     

GENERALIZATION AND MANTENANCE OF TREATMENT GAINS OF BEHAVIORALLY HANDICAPPED STUDENTS FROM RESOURCE ROOMS TO REGULAR CLASSROOMS USING SELF-EVALUATION PROCEDURES

This study provided six behaviorally handicapped elementary school students with a short-term resource treatment to bring their behavior under the control of a combination of treatment procedures emphasizing self-evaluation. Once acceptable levels of appropriate behavior were maintained with only minimal external reinforcement and students were accurately self-evaluating their own work and behavior, generalization and maintenance of behavior gains were sought by introducing a reduced form of the self-evaluation procedures in the students' regular classrooms. A multiple baseline across pairs of subjects design was used to examine individual student's behavior. Analysis of the results of the study indicated that students transferred and maintained high levels of appropriate classroom behavior in their regular classrooms, once self-evaluation procedures were extended into those settings. For four of the six students, all extra-training components were faded. Only two students required a modified form of the original intervention to maintain behavior gains in their regular classrooms.     

PREPARATION FOR EFFECTIVE SELF-REGULATION: THE DEVELOPMENT OF GENERALIZED VERBAL CONTROL

A correspondence training procedure was used to develop consistency between children's verbalizations and their subsequent behavior across increasingly remote settings and time. The interval of time between the verbalizations and the opportunity to engage in several target behaviors was systematically increased across four preschool settings. Probes of generalized verbal control of home behaviors were conducted throughout training and showed that generalization was obtained in the absence of any salient externally imposed contingencies after the children had reliably come under the control of verbalizations about preschool behaviors.