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241.
Gary M. Pace Brian A. Iwata Glynnis L. Edwards Kay C. McCosh 《Journal of applied behavior analysis》1986,19(4):381-389
We conducted several manipulations of mechanical restraint properties during the course of treatment for two profoundly retarded adolescents who exhibited both self-restraint and self-injurious behavior. In study 1, a combination of prompting, differential reinforcement, and stimulus fading reduced one subject's self-restraint, which consisted of holding rigid tubes on his arms. Subsequently, stimulus control of both self-restraint and self-injurious behavior was transferred to tennis wrist bands. In study 2, a second subject's self-restraint—placing his hands in his pants—was immediately eliminated by the use of air splints. Additionally, differential reinforcement and air-pressure fading resulted in the complete mobility of his arms and a substantial increase in appropriate behaviors. Results of this investigation suggest that stimulus fading and transfer may be valuable components in the elimination of self-restraint. 相似文献
242.
The purpose of this study was to evaluate the internal consistency of the content scales of the Child Assessment Schedule (CAS). A total of 116 psychiatric patients with a mean age of 10 years were administered the interview, and 92 parents were administered the parent version. Coefficient alpha was calculated for each of the 11 content scales. High internal consistency was demonstrated for school, friends, worries, mood, physical complaints, and expression of anger. More moderate but acceptable alphas were observed for the family, fears, and self-image scales. The same general pattern of results was observed for both the child and parent interviews. Additional analyses revealed that the number of items in the CAS could be reduced up to 30% without sacrificing internal consistency. These results indicate that 9 of the scales yield reliable scores. 相似文献
243.
Humans and other creatures display remarkable interorganism coordination. For ecological theorists, interorganism coordination poses a challenge because it appears to be an especially “representation-hungry” phenomenon (Clark, 1999). Ecological researchers have proposed that interorganism coordination arises from fundamental laws of pattern formation and synchronization. A key example in support of the ecological approach to coordination is the phase locking of 2 or more weakly coupled metronomes. Here we provide a complementary example of interentity coordination in a system that is more closely analogous to living systems. We show that two self-organizing dissipative structures, coupled in a single electrical field, spontaneously exhibit fairly complex motion coordination. Further, the degree of coordination predicts the rate of entropy production for the system as a whole. We suggest that the complex behavior of motion coordination fulfills a rudimentary end-directedness of the system: evolve to states that create higher rates of entropy production. 相似文献
244.
The Child and Adolescent Functional Assessment Scale (CAFAS) is a multidimensional measure of degree of impairment in functioning. Interrater reliability data are presented for lay raters, graduate students, and frontline staff. Reliability was high for the total score and behaviorally-oriented scales. Construct, concurrent, and discriminant validity were assessed with the sample of children and adolescents evaluated at the Fort Bragg Demonstration Evaluation Project. Youth and their caregivers were evaluated via interview and selfcompleted instruments at four time points. Significant correlations were found between the CAFAS and other related constructs. Concurrent validity was demonstrated by logistic regression analyses examining the relationship between CAFAS ratings and problematic behaviors endorsed on measures completed by parents, teachers, or the youth. Youth with higher CAFAS total scores were much more likely to have poor social relationships, difficulties in school, and problems with the law. Discriminant validity was assessed with a repeated measures analysis of variance with intensity of care at intake and time as factors. Youth who were inpatients or in residential treatment centers at intake had higher CAFAS scores than those who were outpatients. These findings provide strong evidence for the reliability and validity of the CAFAS. 相似文献
245.
Brenda L. Telecsan Deborah Bott Slaton Kay B. Stevens 《Journal of Behavioral Education》1999,9(2):133-154
This study evaluated the effectiveness of a peer-mediated constant time delay procedure for teaching written spelling to fourth- and fifth-grade students identified as learning disabled. The six peer tutors (each with learning disabilities) taught each other to produce the written spelling for 15 five- to eight-letter words using a 3-s delay and a visual model prompt. A multiple probe design across behaviors (word sets) was used to evaluate the procedure. Data were collected on the number of sessions to criterion, trials to criterion, number and percent of errors, and direct instructional time. The classroom teacher prepared students to serve as tutors using a describe-model-guided practice-feedback sequence. Pre- and post-measures were conducted of generalization of the tutoring procedure as well as observational learning by the tutors. Results indicated that (a) peer tutors reliably implemented the time delay procedure, and (b) the tutor-implemented time delay procedure was effective in teaching written spelling to students identified as learning disabled. 相似文献
246.
Kay Colby Sharp 《Journal of applied developmental psychology》1981,2(2):129-143
In order to test Shure and Spivack's theoretical position that a child's ability to verbally generate solutions to interpersonal problems and think about their consequences is directly related to the child's behavioral adjustment, preschoolers were tested on verbal problem-solving skills and their classroom behavior was rated by their teachers. Further, their behavior was observed by independent observers. No significant relationship between problem-solving skills and behavior was found. Following assessment, 54 of these children completed an 11-week training program, designed by Shure and Spivack, to improve their ability to think through and verbally generate solutions to interpersonal problems and to examine the possibility of mediation of such training to behavioral improvement. Preschoolers' ability to verbally generate alternative solutions to problems significantly increased due to training, however, this increase did not have an ameliorative effect on behavioral adjustment. 相似文献
247.
We describe the use of a photo-optical device for the measurement of peripheral vascular activity, the Optek OPB707A, which we advocate to replace the now obsolete Sensor Technology STRT-850A. The Optek device provides a close coupling of light emitted and received through use of a GaAlAs light-emitting diode (LED). It also provides a photodarlington transistor as the receiver. The device should be used in a transmitted mode (e.g., LED illuminating tissue on volar surface of thumb and receiver on the thumbnail). Signal-to-noise characteristics and replicability of the signal from occasion to occasion are shown to be equal or superior to those of the earlier device. 相似文献
248.
Eight hundred personal advertisements were analyzed, representing an equal sampling of male and female homosexual and heterosexual advertisers on the East and West Coast of the United States. In general, men were more concerned with physical characteristics, while women stressed psychological factors. Homosexuals were more concerned with sexuality, while heterosexuals specified a broader range of characteristics. Significant interactions between gender and sexual orientation point to the importance of sex-role expectations in the heterosexual context and suggest substantial differences between males and females who choose homosexuality. 相似文献
249.
Sixty female subjects and sixty male subjects, either sex-typed or androgynous, based on scores on the Bem Sex-Role Inventory (BSRI), made causal attributions for their own success or failure. Subjects also predicted future performance on a similar task. Sex differences were revealed which are only partially consistent with a cognitive-based expectancy model. It is suggested that outcome and ego involvement in the task are crucial factors in whether cognitive-based or more self-serving attributions are used in accounting for performance. Androgynous subjects predicted higher future performance. However, contrary to prediction, attributional behavior of androgynous and sex-typed subjects did not differ. Results are discussed in terms of rapidly changing views, in both the conceptualization and the measurement of psychological androgyny, since Bem's original report of behavioral correlates to scores on the BSRI. 相似文献
250.
In each of three experiments rats were pretreated in straight alleys to discriminate the brightness of an alley as signal for the magnitude of reward. Then the rats were tested in E-shaped mazes in which reward varied across trials and in which the brightness of the stem signaled the magnitude of reward. In all three experiments the rats alternated more on trials following a small reward on the previous trial, and in the third experiment the rats alternated more on those trials where a small reward was signaled. Rats choice responses on Trial n were also affected by the stimulus/reward and choice on Trial n − 2 and by the relationship between stimuli/rewards on Trials n − 2 and n. These results were interpreted as a tendency by the rat to change a less satisfactory situation by varying its response, and to retain a more satisfactory situation by perseverating in its choice response. 相似文献