DEVELOPMENT OF SPONTANEOUS MANDING IN LANGUAGE DEFICIENT CHILDREN

Six institutionalized children, aged 7–11, with little or no spontaneous vocal manding, were trained to request food items under appropriate natural conditions when snacks were presented. “I want a” was appropriate when an adult presented food in the playroom. “Out” was appropriate when the items were displayed in the hallway, across a half-door barrier from the child. A sequence of steps was trained, through increasingly naturalistic setting and cuing conditions. The two mands were trained in sequence, not concurrently. To encourage “spontaneous” productions, no vocal cuing was provided by the adult. After criterion performance in each step, several probe sessions were conducted for various cuing conditions, adults, and settings. Probes after imitation training showed no spontaneous manding. Thus, failure of manding was not due to production difficulties. In probes after training for “approximately” natural cues, most children showed little transfer to the natural cues. This implies that training for the specific appropriate cues may often be required. However, good transfer generally occurred across persons, and from training room to playroom. Probes also showed that most children did not use one of the trained mands in the stimulus conditions that were appropriate for the other mand. Thus, adding a second mand did not generally disrupt use of the first. However, significant disruption occurred for two children. Finally, at the end of training, extinction training was given for one mand in one setting. Performance of the other mand was litle affected. In sum, the appropriate form of a mand depends on specific stimulus and setting characteristics, and these characteristics must be considered in training.     

USE OF SOCIAL-SKILLS TRAINING IN THE TREATMENT OF EXTREME ANXIETY AND DEFICIENT VERBAL SKILLS IN THE JOB-INTERVIEW SETTING

A 30-year-old recent college graduate, exhibiting extreme anxiety and deficient verbal skills in job interviews, was treated with a social-skills training procedure that included instructions, modelling, behavior rehearsal, and videotape feedback. Three target behaviors—focused responses, overt coping statements, and subject-generated questions—were presented using a multiple-baseline design. Galvanic skin-response activity was monitored during pre- and posttraining in vivo job interviews. In addition, independent judges unobstrusively rated the subject's social-communicative behaviors in his temporary work-setting before and after training. Training resulted in expected changes for all three target behaviors and a decrease in the rate of speech disturbances. Physiological data supported the subject's report that training enabled him to deal with his anxiety more effectively during job interviews. Training was found to generalize to novel interview questions and different interviewers. Furthermore, unobtrusive measures of eye contact, fluency of speech, appropriateness of verbal content, and composure supported the subject's report that training generalized to his daily social interactions on the job.     

Natural rates of teacher approval and disapproval in grade-7 classrooms

The natural rates of teacher verbal approval and disapproval in ten grade-seven classrooms were determined and compared with those described by White (1975). Although there were differences in the observation techniques used and the behavioral, cultural, and ethnic groups sampled, the results were similar. The majority of the teachers displayed individual rates of disapproval that were higher than their individual approval rates. The correlations between levels of on-task behavior and approval and disapproval rates were low. The issues raised by these findings are discussed in terms of directions for further research.     

Some thoughts on correspondence between saying and doing

Recent research on verbal-nonverbal correspondence is evaluated, and conceptual, methodological, and applied issues regarding correspondence are addressed. Directions for research concerning the correspondence training procedure and extended applications are suggested.     

INCREASING APPROPRIATE SPEECH IN A CHRONIC SCHIZOPHRENIC

In a severely withdrawn schizophrenic, a combination of instructions, modeling, informational feedback, and noncontingent reinforcement was associated with a low rate of appropriate verbalizations. However, an increase in speech output was obtained using a combination of instructions, modeling, informational feedback, and contingent reinforcement. The design of this study thus permitted the conclusion that contingent reinforcement was crucial in bringing about the increase in appropriate verbalizations. The three verbal behaviors that increased in frequency were: (a) the number of socially appropriate words emitted, (b) declarative statements, and (c) appropriate replies to questions. The verbal behaviors of conversational questions and positive conversational feedback failed to be significantly affected by the experimental procedures. An attempt was also made to establish whether having the subject engage in the observable, information-gathering response of reading aloud would result in increased speech output during a subsequent conversation period. Having the subject read aloud failed to have any discernible positive effect on his speech output. A withdrawal design was used to evaluate the effectiveness of the experimental procedures. The importance of assessing changes in verbal output with a variety of verbal response measures, stereotyped verbal behaviors, and carryover effects are discussed.     

Sharing in preschool children: Facilitation, stimulus generalization, response generalization, and maintenance

Three approaches to facilitating verbal and physical sharing and of the generalizability and durability of the behaviors that were trained were investigated. During a free play period, groups of preschool children were taught to share verbally, to share physically, or to share verbally and physically; another group was not trained. Immediately following free play, the children were observed in a different setting. Follow-up was conducted 4 weeks after training ended. Physical sharing that was durable and generalizable resulted only when children were taught to share verbally. Increases in physical sharing produced by training children to share only physically were not durable and did not generalize. Training both verbal and physical sharing produced results with a magnitude slightly greater than teaching just verbal sharing. Despite a lack of special programming, some of the treatment effects generalized to another setting and were maintained during the Follow-up. There was response generalization of the effects of training verbal sharing to physical sharing but not vice versa. Problems with the concept of response class, a methodological suggestion for studying response generalization, and possibilities concerning why generalization and maintenance occurred without specific programming are discussed.     

A North American perspective on the psychological maltreatment of children

Psychological maltreatment may be the most common form of abuse suffered by North American children within the family environment. However, little effort has been directed towards eliminating and preventing it. The present article emphasizes the importance of thoroughly understanding the phenomenon so that effective intervention strategies can be developed. North American research studies of child maltreatment are reviewed and discussed with particular emphasis placed upon the manifestations of psychological maltreatment, the scope and the consequences of the problem, and the identification of associated risk factors. The paper identifies several areas for improvement before successful interventions can be conceptualized.     

The relationship between pronunciation and listening discrimination when Japanese natives are learning English

Two Japanese students were taught to pronounce and discriminate English words that contain unfamiliar phonemic contrasts (e.g., rock and lock). Teaching pronunciation was found to be easier than teaching listening discrimination. Teaching listening discrimination resulted in collateral improvement in pronunciation and, to a lesser extent, vice versa.     

Psychometric latent response models

In this paper, some psychometric models will be presented that belong to the larger class oflatent response models (LRMs). First, LRMs are introduced by means of an application in the field ofcomponential item response theory (Embretson, 1980, 1984). Second, a general definition of LRMs (not specific for the psychometric subclass) is given. Third, some more psychometric LRMs, and examples of how they can be applied, are presented. Fourth, a method for obtaining maximum likelihood (ML) and some maximum a posteriori (MAP) estimates of the parameters of LRMs is presented. This method is then applied to theconjunctive Rasch model. Fifth and last, an application of the conjunctive Rasch model is presented. This model was applied to responses to typical verbal ability items (open synonym items).This paper presents theoretical and empirical results of a research project supported by the Research Council [Onderzoeksraad] of the University of Leuven (grant number 89-9) to Paul De Boeck and Luc Delbeke.     

Bias in self-evaluation: Signal probability effects

Two experiments examined apparent signal probability effects in simple verbal self-reports. After each trial of a delayed matching-to-sample task, young adults pressed either a “yes” or a “no” button to answer a computer-presented query about whether the most recent choice met a point contingency requiring both speed and accuracy. A successful matching-to-sample choice served as the “signal” in a signal-detection analysis of self-reports. Difficulty of matching to sample, and thus signal probability, was manipulated via the number of nonmatching sample and comparison stimuli. In Experiment 1, subjects exhibited a bias (log b) for reporting matching-to-sample success when success was frequent, and no bias or a bias for reporting failure when success was infrequent. Contingencies involving equal conditional probabilities of point consequences for “I succeeded” and “I failed” reports had no systematic effect on this pattern. Experiment 2 found signal probability effects to be evident regardless of whether referent-response difficulty was manipulated in different conditions or within sessions. These findings indicate that apparent signal probability effects in self-report bias that were observed in previous studies probably were not an artifact of contingencies intended to improve self-report accuracy or of the means of manipulating signal probability. The findings support an analogy between simple self-reports and psychophysical judgments and bolster the conclusion of Critchfield (1993) that signal probability effects can influence simple self-reports much as they do reports about external stimuli in psychophysical experiments.