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301.
An archival analysis of records from 206 criminal cases was used to evaluate the impact of personal and situational factors on jury verdicts. In particular, we evaluated whether repeated jury service produced bias in jurors that was sufficient to affect jury decisions. A variety of case characteristics and indices of prior jury experience was examined for their relative impact on trial outcomes. Several of the case characteristics were related to verdicts, but the personal characteristics were not. Although more than half of the juries contained experienced jurors, juror experience had little influence on verdicts in either major or subsidiary analyses. However, there was a slight tendency for small juries with large proportions of experienced jurors to convict. This result is consistent with data from Kentucky; a meta-analysis across the two data sets indicates that it is a reliable finding. The results have implications for the determination of jury size. We suggest that future research examine the possibility that increasing jury size may reduce the influence of an individual's bias by providing a balance of other jurors with no or offsetting biases.  相似文献   
302.
Chlordiazepoxide (5.0 and 10.0 mg/kg but not 2.5 mg/kg) administered on 10 successive sessions, significantly impaired the reinforcement-cued discrimination performance of male Sprague-Dawley rats. On three postdrug (saline) recovery sessions, groups previously treated with the drug demonstrated good recovery in discrimination performance. An analysis of response components indicated that the discrimination impairment was due to less inhibition of responding during "no-go" phases of the task by the drugged than control animals. While changes in responding during reinforcement phases may also contribute to the performance of drugged animals, no clear pattern emerges from the present study.  相似文献   
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304.
Ss either saw or heard lists of three syllables which differed by their initial consonant phoneme or their final vowel phoneme. After 5 or 15 sec of mental arithmetic, Ss were required to recall the syllables. Following auditory presentation, vowels were recalled more accurately than consonants in all serial positions and at both delays. In addition, spoken consonants and vowels showed primacy and recency effects. Following visual presentation, consonants and vowels were recalled with equal accuracy at both delays, and no recency effects were observed. These data suggest that superior recall of vowels over consonants results from differential decay of these stimuli in an acoustic storage. These data are consistent with previous experiments showing that, during serial recall, the final vowels in a sequence are recalled more accurately than the final consonants.  相似文献   
305.
Reversal and non-reversal shifts were studied in rural Mexican children ranging in age from 4–10 years. Experimental variations within each group were arranged to provide for evaluation of the influence of temporal pairing and the presence of common attributes in different discriminanda on transfer. Under some presentation conditions, all of the groups studied manifested independent learning of subproblems which are ordinarily thought of as constituting a single problem by experimenters. The contributions of the various experimental factors change with age in ways that are consistent with a general “single-unit to mediational” formulation, but the details of the mediational behavior are not fully describable by any currently formulated theory.  相似文献   
306.
Discrimination learning studies designed to study mediational processes of young children are discussed using a recent paper by Brown and Scott as a point of departure. It is urged that investigators lay aside demonstrations of the existence of mediation in young children as a focus of research, substituting a search for the conditions of its occurrence.  相似文献   
307.
A methodology was developed for bringing smoking behavior in great apes under the control of a contingent food reinforcer. In this procedure, Ss were required to maintain long continuous draw durations (5 sec) against lighted cigarettes in order, to obtain candy rewards. By beginning with short criterional durations and gradually, working up to the desired response criterion, Ss were successfully habituated to the aversive aspects of smoking. The results indicated that it is possible to both shape and maintain smoking behavior with response-contingent reinforcement. The successful implementation of this procedure suggests that the pulmonary route can be used for drug administration with nonhuman primate species.  相似文献   
308.
Ss heard a passage from Lewis Carroll’s Through the Looking Glass and were asked to indicate, as quickly as possible, whenever they heard a mispronunciation. Mispronunciations were produced by changing one consonant sound in a three-syllable word by one, two, or four distinctive features (e.g., busily to “pizily,” “visily,” or “sizily”). Mispronunciations involving a single feature change were seldom detected, while two and four feature changes were readily detected. The syllable in which a mispronunciation occurred did not affect the probability of detecting a mispronunciation. However, reaction times to mispronounced words were at least a third of a second slower when they occurred in the-first syllable of the word. The results were taken to support the notion that words are identified by their distinctive features.  相似文献   
309.
A common guideline for vocational counseling is the rule requiring congruence between a man and his job. The issue of person-placement congruence was studied utilizing 159 patients referred for vocational rehabilitation to the Mental Health and Manpower Project from the Fort Logan Mental Health Center. A 13-item scale devised by project research staff and completed by vocational counselors was shown to predict later job success. By separating the scale into two categories, those items dealing with abilities and those related to needs, it was possible to predict the nature of job termination, i.e., quit or was fired. There was demonstrated considerable validity for the man-job fit approach to counseling, and this research served as an initial step toward detailing this rather simple rule.  相似文献   
310.
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