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Kindergarten children were given simultaneous discrimination tasks with two irrelevant dimensions varying within settings. Prior to each block of eight feed-back trials, the children were asked to attempt to provide a statement of the solution. The introtacts thus provided were found to have several of the desirable characteristics that have been reported for older children with either introtact or blank-trial probes, but which have not been found previously for kindergarten children with the blank-trial probe. Classification of the children according to the trial block on which they first verbalized the correct relevant dimension was found to account for more than 60% of the total variability in discrimination performance. The introtacts were also used to assign parameters to theoretical prediction equations, with nearly two-thirds of the total variability in discrimination performance accounted for by the theory. Extension of the method to other models is discussed. 相似文献
213.
Charles C. Spiker 《Journal of mathematical psychology》1977,15(1):102-108
The variable-criterion theory of simple reaction times proposed by G. R. Grice is briefly summarized. Grice's method of parameter estimation is described, and it is shown how these procedures can be converted to a least-squares estimation. Finally, the likelihood function is derived from the theory, thereby permitting use of the method of maximum likelihood for estimating the Grice parameters in experiments of simple reaction times. 相似文献
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Previous investigations of the effects of bogus arousal feedback on approach toward an aversive stimulus have failed to separate two conceptual issues: (1) the influence of perceived anxiety on approach behavior, and (2) the degree to which perceptions of decreased anxiety are central to systematic desensitization. The present research deals with only the first of these issues. The procedure required each subject to attach a microphone to his or her chest and approach a snake. Bogus heartbeat feedback was presented concurrently with the subject's approach. In Experiments 1 and 2, self-reported snake phobics approached more with a constant than with an accelerating heartbeat. Nonphobics in Experiment 2 were not systematically influenced by the feedback. In Experiment 3, subjects with moderate fear, but who had stated that they could pick up a snake, behaved like the previously tested nonphobics; moderate fear subjects who had stated uncertainty about their ability to handle a snake behaved like previously tested phobics. In no case did postexperimental self-rated fear of snakes yield a difference between feedback conditions. The results are discussed in terms of the attributional analysis of emotional behavior. 相似文献
216.
Ronald A. Giannetti James H. Johnson Thomas A. Williams Charles F. McCusker 《Behavior research methods》1977,9(2):133-138
Current on-line assessment applications are limited to mimicking instruments designed for paper and pencil. The development of an instrument designed specifically for on-line technology is described. The instrument provides research data on treatment effectiveness, clinical information for treatment planning, and management information for resource allocation. 相似文献
217.
Myron L. Braunstein 《Attention, perception & psychophysics》1977,21(6):553-557
Direction of rotation judgments were obtained from 72 subjects for computer-generated dot patterns simulating points randomly distributed in a sphere rotating about a vertical axis. The displays were produced either with normal polar projections or with perspective effects limited to the horizontal or to the vertical dimension of the projection. The simulated viewing distance used in the projections and the visual angle subtended by the projected displays were also varied. Accuracy of direction judgments was about the same with perspective effects limited to the vertical dimension as with normal polar projections but did not exceed chance expectations with perspective effects limited to the horizontal dimension. Accuracy was lower at the greater simulated viewing distance and at the greater visual angle. 相似文献
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