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Dinsmoor JA Dougan JD Pfister J Thiels E 《Journal of the experimental analysis of behavior》1992,58(2):265-276
In the first experiment, 4 pigeons were each presented with a recurring sequence of four key colors followed by the delivery of grain (block clock). Once the rate of pecking had stabilized, three of the colors were replaced, during different series of sessions, by a darkening of the key. The rate of pecking was reduced within those segments of the interval between deliveries of food during which the key was dark; when the key was dark during the final portion of the interval, rates were reduced throughout the entire interval. In the second experiment, 3 new pigeons were exposed to a different sequence of colors, and the final stimulus was replaced in successive conditions by a novel color, a darkened key, and a restoration of the original color. The data indicated that darkening the key had a more severe, more extensive, and more persistent effect than did a mere change in color. These results suggest that it may be fruitful to conceptualize the autoshaping procedure as a special version of the block clock in which pecking is suppressed throughout the greater part of the interval by darkening the key. In the final condition, the same stimulus appeared in each of the last three portions of the interval. The rate of pecking was lower during the last two portions than when distinctive colors were presented, with the peak rate now appearing in the fifth of seven equal temporal components. 相似文献
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A Bayesian approach to the testing of competing covariance structures is developed. The method provides approximate posterior probablities for each model under consideration without prior specification of individual parameter distributions. The method is based on ayesian updating using cross-validated pseudo-likelihoods. Given that the observed variables are the samefor all competing models, the approximate posterior probabilities may be obtained easily from the chi square values and other known constants, using only a hand calculator. The approach is illustrated using and example which illustrates how the prior probabilities can alter the results concerning which model specification is preferred. 相似文献
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It is argued that knowing-how (to perform) is not dependent on knowing that (knowing propositions about performance). Existing evidence allows any benefits from metacognitive training to be attributed to generalization training, not to the announcement of rules. Rules may encourage the subject to learn new tasks, but these tasks must be learned in the contexts of eventual application. 相似文献
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The study investigated possible sex differences in the types of problems that are correlated with Beck Depression Inventory (BDI) scores, using a sample of college students. Problems related to assertiveness and feeling ill at ease were positively correlated with BDI scores for males, but not for females. In contrast, conflicts with parents, feelings of being boxed in and of boredom, lack of money, and chronic physical complaints were positively related to BDI scores for females, but not for males. 相似文献
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The present research aims to identify unique characteristics of written conspiracy theories. In two pre-registered quantitative human-coded content analyses, we compared 36 pairs of conspiratorial and non-conspiratorial online articles about various events. As predicted, conspiratorial articles—compared to non-conspiratorial articles—contained less factual, more emotional and more threat-related information. Also, we predicted and found that conspiratorial articles presented more argumentation against the opposing standpoint and that they provided explanations that were more dispositional and less falsifiable. Contrary to our predictions, we did not consistently observe that conspiratorial articles presented less argumentation for their own standpoint. Also, we did not find consistent support that conspiratorial articles provided less information about the specific process or more information about the underlying goals of the respective events, or that conspiratorial explanations attributed the events to a lesser extent to situational factors. We discuss the relevance of our findings for the understanding of conspiracy theories. 相似文献
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Roland Breeur 《Husserl Studies》1994,11(1-2):3-63
Ohne Zusammenfassung 相似文献
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The Diana (Diana v. State Board of Education, Note 1) and the Larry P. (Larry P. v. Riles, Note 2) litigations led to decertification of thousands of California EMR students and their return to the regular program. Allegations, including those of biased testing, went largely uncontested in order that change in special education could result from court mandate, but the allegations left the psychologists in a libeled state. A study of cumulative records and psychologists files in 12 representative districts permitted a comparison of the EMR placement of those later decertified (D) with matched nondecertified (EMR). Other than a small mean difference in IQ at placement, nothing was found to support various allegations. Records showed no systematic differences betweeen D and EMR groups in pre-EMR reasons for referral nor in teacher marks, discnfirming beliefs in referral of higher functioning students for deportment rather than for academic failure. Districts permitted a mean of at least two years in regular placement before assessment, attesting to class failure rather than IQ as the initial and necessary basis for EMR identification (no D-EMR difference in this either). The data permit a conclusion that the work of the school psychologists in the EMR placement was professionally competent, given the guidelines in effect at the time. 相似文献