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121.
Mary M. Riordan Brian A. Iwata Jack W. Finney Marianne K. Wohl Alison E. Stanley 《Journal of applied behavior analysis》1984,17(3):327-341
In this study, we examined the eating behavior of four handicapped children, none of whom exhibited self-feeding skills. All children had a history of food refusal and were nutritionally at risk; one child received all nourishment by way of a gastrostomy tube. Baseline data taken during mealtimes indicated that all children accepted very little food, expelled food frequently, and engaged in a number of disruptive behaviors. Treatments consisted of one or more of the following contingent events: social praise, access to preferred foods, brief periods of toy play, and forced feeding. Results of multiple-baseline and reversal designs showed marked behavioral improvement for each child and increases in the amount of food consumed. Further improvements were noted at follow-up, which ranged from 7 to 30 months posttreatment. 相似文献
122.
The study investigated employee perceptions about the reward or punishment values inherent in a variety of supervisor actions. Actions viewed as most rewarding were generally actions that possessed (a) public visibility, (b) tangibility, (c) implied esteem, and (d) long-term implications. Actions viewed as punishing or aversive involved similar characteristics. Visibility appeared to be most strongly related to perceived severity. In contrast with suggestions in the literature (cf. León, 1981), substantial levels of agreement among raters were found for aversive as well as rewarding actions. Also reviewed are characteristics of leader actions that received mixed ratings from respondents. 相似文献
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Marianne W. Kristofferson 《Attention, perception & psychophysics》1972,12(4):379-384
The effect of prolonged practice upon item recognition performance was investigated under conditions of nested positive sets and complete response consistency. Nesting is defined by each positive set containing all the items contained in smaller positive sets. Response consistency is defined by each item in the stimulus set consistently requiring only a positive or only a negative response. A low error level was maintained. Twelve Ss worked with three positive set sizes in each of 36 sessions. Half the Ss worked with digit stimuli and half with pictures. The item recognition function (that function relating response latency and positive set size) was found to be negatively accelerated throughout the course of practice. The effect of positive set size decreased significantly (p < .001) with practice, and set size effects were significantly (p < .03) greater for positive response trials than for negative response trials. Kind of item had no effect on the set size effect. A theoretical framework consistent with these results is suggested. Results from the present study are compared with findings obtained previously from visual search studies. It is concluded that when the procedures in both tasks include response consistency, nested positive sets, and low error levels, the effects of prolonged practice upon the set size from item recognition and visual search are qualitatively very similar. 相似文献
125.
J Hirsch M Holliday 《Journal of comparative psychology (Washington, D.C. : 1983)》1988,102(4):372-377
In 1935 the editor of this journal called attention to limitations inherent in the presentation of grouped or average data (Dunlap, 1935/1982). Because of contemporary misconceptions analogous to those Dunlap discussed, we clarify and emphasize the important distinction between the use of grouped data to demonstrate learning in a species and the reliable measurement of learning in identified individuals, as well as how best to assess the outcome of selective breeding with conditioning as the phenotype. 相似文献
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E kman , G., F röberg , J. & F rankenhaeuser , M. Temporal integration of perceptual response to supraliminal electrical stimulation. Scand. J. Psychol ., 1968, 9, 83–88.—The effect of duration of electrical stimulation on perceived unpleasantness was investigated in 10 subjects. Duration of stimulation ranged from 0.05 to 3.00 sec. Three levels of intensity were investigated representing 2, 3, and 4 times the individual sensation threshold. For all stimulus intensities perceived unpleasantness was a simple logarithmic function of stimulus duration over the whole temporal range. This relation describes the trend of both the group data and the data from most individual subjects. The results support previous findings over a narrower temporal range and agree with results recently obtained in several additional sense modalities. 相似文献
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Robert L. Gibson Robert Higgins Marianne H. Mitchell 《Journal of counseling and development : JCD》1967,45(8):824-827
662 former secondary school leavers of academic potential were identified for a program designed to give selected dropouts a chance to enter the University of Toledo. Following responses to questionnaires, 94 students were selected for further screening, which resulted in the final selection of 50 candidates. 34 members of the experimental group attended pre-school workshops in reading, writing, and study habit skills. 31 enrolled as regularly admitted students in academic programs of the university for the academic year. 11 completed their freshman year, although only 4 were making satisfactory academic progress. 相似文献