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161.
Beyond being and nonbeing 总被引:1,自引:0,他引:1
Roderick M. Chisholm 《Philosophical Studies》1973,24(4):245-257
162.
"Overprompting" in programmed instruction 总被引:1,自引:0,他引:1
163.
Roderick P. McDonald 《Psychometrika》1975,40(2):137-152
Through an extension of work by Guttman, common factor theory, image theory, and component theory are derived from distinct minimum subsets of assumptions chosen out of a set of five possible assumptions. It is thence shown that the problem of indeterminacy of factor scores in the common factor model is precisely reflected in the problem of the non-orthogonality of anti-images. Indeed, image scores are determinate for the same reason that the usual estimates of factor scores are determinate, and image scores cannot be used as though they were factor scores for the same reason that factor score estimates cannot be used as though they were factor scores. 相似文献
164.
Previous research has indicated that phonemic and orthographic factors cannot account for the fact that words (clear/clear) are responded to more rapidly than orthographically legal nonwords (creal/creal) in a same-different visual comparison task. However, the role of semantic and lexical factors is less certain. The effects of semantic similarity on both same and different judgments were evaluated in several experiments. In the first experiment, subjects were not any slower on semantically related (rang/rung) than on unrelated (rang/rank) different judgments even with a 3,000-msec interval between the first and second word. In Experiment 2, subjects based their judgments on whether or not the first letter of each word was visually identical. Same judgments were not any faster for semantically related than unrelated items even though other evidence indicated that subjects were processing the whole word and not just the first letter. Experiment 3 showed that the word/orthographically legal nonword difference could be replicated with the first-letter visual comparison task employed in Experiment 2. These and related results were discussed with reference to the idea that the word/orthographically legal nonword difference is due to the facilitating effects of a lexical entry upon the encoding, but not the comparison of an item. 相似文献
165.
In recent years, the technology of contingency management has been shown to be of increasing value in regular classrooms and public-school systems with both groups and individual pupils (Ayllon and Roberts, Journal of Applied Behavior Analysis, 1974, 7 , 71–76; Glynn and Thomas, Journal of Applied Behavior Analysis, 1974, 7 , 299–306; Lovitt and Curtiss, Journal of Applied Behavior Analysis, 1969, 2 , 49–53; Lovitt and Smith, Exceptional Children, 1974, 40 , 357–358; Medland and Stachnik, Journal of Applied Behavior Analysis, 1972, 5 , 45–51). In addition, established procedures are being systematically replicated across grade levels and differing subject-matter areas. A series of studies initiated by O'Leary and Becker (Exceptional Children, 1967, 33 , 637–642) form the basis for the present investigation. The token reinforcement program described by O'Leary and Becker (Exceptional Children, 1967, 33 , 637–642) was managed by the teacher of an adjustment class and involved 9-yr-old children described as emotionally disturbed. An elaborate replication of the 1967 O'Leary and Becker study conducted by O'Leary, Becker, Evans, and Saudargas (Journal of Applied Behavior Analysis, 1969, 2 , 3–31) with a grade-two class introduced several variables to examine their separate effects. The authors specified their treatment levels as baseline, classroom rules, educational structure, teacher praise and ignore, token I, withdrawal, token II, and follow-up. The present research modified the general design of O'Leary et al., (Journal of Applied Behavior Analysis, 1969, 2 , 3–31) to study how to maintain treatment effects. In the modification, rules were eliminated as a treatment variable because they are frequently associated with aversive practices in the school system, and it was deemed desirable to have mainly a positive orientation. A second difference was that the present subjects were grade-nine pupils functioning in the regular public-school system. The six students were older (average age = 16.2) and well behind their peers in achievement. They were considered behavior problems and as potential dropouts by teachers and counsellors. They were not considered to be emotionally disturbed. Finally, procedures designed to maintain behavior change generated by the token system were added. The operant level of unacceptable classroom behavior was obtained for six students receiving an individualized program of instruction in mathematics and science in a nonacademic grade-nine class in a public junior secondary school. Initially, two conditions (educational structure and praising appropriate behavior while ignoring inappropriate behavior) were introduced successively. Both procedures reduced inappropriate behavior slightly. When a token system, using backup reinforcers readily available in the school, was introduced in conjunction with the initial two conditions, inappropriate responses declined dramatically in all subjects. Withdrawal of the token program for a three-week period, leaving educational structure and praising and ignoring in effect, increased inappropriate behavior in five of the six subjects. The token program was then re-introduced in conjunction with contingency contracts. The result was a decline of inappropriate behavior below the mean of the first token condition for all subjects. Tokens were thinned and finally removed toward the end of this condition, leaving teacher praise and attention and the contract system in effect. Data obtained during a four-week followup indicated that the low level of inappropriate behavior was maintained in all subjects. This extension of the O'Leary et al., (Journal of Applied Behavior Analysis, 1969, 2 , 3–31) program, designed and implemented by the regular teacher, demonstrates that these procedures may be highly effective within the constraints found in an ordinary classroom in the junior secondary school. 相似文献
166.
Jacqui Smith Steven Hausfeld Roderick P. Power Angela Gorta 《Attention, perception & psychophysics》1982,32(5):454-464
Three experiments with musicians and nonmusicians (N=338) explored variations of Deutsch’s musical scale illusion. Conditions under which the illusion occurs were elucidated and data obtained which supported Bregman’s suggestion that auditory streaming results from a competition among alternative perceptual organizations. In nExperiment 1, a series of studies showed that it is more difficult to induce the scale illusion than might be expected if it is accepted that an illusion will be present for most observers despite minor changes in stimuli and experimental conditions, The stimulus sequence seems better described as an ambiguous figure. Having discovered conditions under which the scale illusion could be reliably induced, Experiments 2 and 3 manipulated additional properties of the stimulus (timbre, loudness, and tune) to provide cues to streaming other than pitch and location. The data showed that streaming of this sequence can be altered by these properties, supporting the notion of a general parsing mechanism which follows general gestalt principles and allows streaming by many stimulus dimensions. Finally, suggestions are made as to how this mechanism might operate. 相似文献
167.
Margaret M. Flintoff Roderick W. Barron James M. Swanson Alexa Ledlow Marcel Kinsbourne 《Journal of abnormal child psychology》1982,10(2):145-161
Visual scanning patterns were investigated in 32 children referred for symptoms of hyperactivity in a doubleblind crossover comparison of methylphenidate and placebo treatments. Total errors, response latency, and visual fixations were recorded as the child scanned computer-generated visual matching-to-sample problems. Results indicated that the number of fixations on the standard stimulus in the matching task was significantly larger in the methylphenidate state. Drug treatment also resulted in a significant increase in the number of systematic comparisons between the standard and the variants in the task. However, the increased selectivity of attention to the standard stimulus was not accompanied by a reduction of total errors. It was suggested that the stimulant drug may increase attentional selectivity even when such a shift fails to produce improvement in task performance.This research is based in part upon a master's thesis completed by the first author in the department of Psychology, University of Guelph. The authors are indebted to Dean H. Owen for providing the random polygons used in the experiment. The research was supported by grants from the Ontario Mental Health Foundation and the Medical Research Council of Canada to James M. Swanson. 相似文献
168.
Ana R. Delgado Gerardo Prieto Roderick A. Bond 《Journal of applied social psychology》1997,27(20):1824-1841
Cultural psychology is concerned with the comparative study of the way culture and psyche shape each other: This process is particularly well illustrated in the social construction of some feelings. Although sexual jealousy seems to be universal, people differ in the intensity of their reactions and in the type of stimuli perceived as threatening. Replicating previous research in Britain by Delgado and Bond (1993), a questionnaire research survey was conducted in Spain to determine if lay perception considers jealousy a justification for wife battery. The comparison of results shows striking differences: The harmdoer was seen as more guilty in Britain and the victim was seen as more guilty in Spain. Results demonstrate cultural differences in the perception of jealousy; when jealousy is a motive for assault, there are also cultural differences in judgments of responsibility. Emotions function differently in different cultures regarding perceived causes and justification for conduct. 相似文献
169.
Conditions are given under which the stationary points and values of a ratio of quadratic forms in two singular matrices can be obtained by a series of simple matrix operations. It is shown that two classes of optimal weighting problems, based respectively on the grouping of variables and on the grouping of observations, satisfy these conditions. The classical treatment of optimal scaling of forced-choice multicategory data is extended for these cases. It is shown that previously suggested methods based on reparameterization will work only under very special conditions. 相似文献
170.
William R. Higa Roland G. Tharp Roderick P. Calkins 《Journal of experimental child psychology》1978,26(3):489-497
Kindergarten, first-grade, and second-grade children (5, 6, and 7 years of age, respectively) performed a Luria-type verbal control task in which motor responses are initiated to positive stimuli and inhibited to negative stimuli. The task was performed by motor responding only and verbal self-directed motor responding, with these conditions reversed in sequence for one half of each grade group. Although motor responding and verbal-motor responding by the two younger groups were generally poor, their performance equalled that of the second graders when the verbalizing condition followed the silent, motor-only condition. For these children, verbalizing appeared to constitute a second task which interfered with motor responding. Prior practice on motor-only responding, however, facilitated subsequent, concurrent performance of the two tasks. No interference or practice effects were found for the second graders. The results suggested that self-instructional training programs are likely to be successful when adequate verbal-motor coordination can be assumed or when the motor response is within the child's repertoire. 相似文献