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191.
192.
Susan Clayton 《Journal of applied social psychology》1996,26(16):1472-1493
One argument made against affirmative action is that it is undesirable or inappropriate to treat people on the basis of their group membership. The present study attempts to evaluate college students' opinions about this type of social categorization. Two variables were manipulated: type of social group (i.e., one based on race, gender, religion, sexual orientation, or college major), and the purpose of the categorization (to identify, to form a social group, to form a political group, or for affirmative action purposes). Results indicated that students were, in general, opposed to such social categorizations. The presence of interaction effects, however, suggests that opposition to affirmative action is not uniform across different target groups and is not based solely on objections to social categorization. Implications are discussed. 相似文献
193.
Two experiments are described in which subjects studied made-up, fantasy facts about well-known persons and then were asked to verify actual facts about these persons. Reaction time to the actual facts was longer the more fantasy propositions studied about a person. Reaction time was also longer when the verification test involved a mixture of actual and fantasy facts rather than just actual facts. A mathematical version of the ACT model (Anderson, 1976) was fit to the data. It provides a satisfactory fit, better than an alternate model. However, some of the parameter values estimated for the ACT model seemed unreasonable. 相似文献
194.
Rats were trained to hold down a lever for at least 40 consecutive seconds. When the lever had been held down for 40 sec, white noise came on. Releasing the bar in the presence of the noise turned off the noise and operated a feeder that delivered a pellet of food. At the end of training, frequency distributions of response durations peaked at 40 to 41 sec. If as in training, holding down the lever produced white noise at the end of 40 sec, and release of the lever terminated the noise and operated the feeder, but no food delivery occurred, duration distributions and several other measures were initially not very different from when food was delivered. However, if during extinction white noise was never produced by lever holding, and feeder operation did not occur upon lever release, most responses were shorter than 1 sec in duration, some were much longer than 41 sec, and duration distributions did not peak at 40 to 41 sec. When reinforcement was reinstated after extinction, performance quickly returned to pre-extinction measures. Further sessions at different levels of deprivation produced only temporary disruptions in performance. 相似文献
195.
196.
Forty groups of subjects were given six lists of 25 nouns each for immediate free written recall. A measure of free recall was thereby obtained for each of 900 nouns in the Paivio, Yuille, and Madigan (1968) norms, each noun’s measure based on the recall of 32 subjects. First-order correlations showed recall to be correlated with imagery, concreteness, meaningfulness, Thorndike-Lorge frequency, and Kuěra-Francis frequency. Partial correlations showed meaningfulness to be essentially unrelated to recall and concreteness only moderately related. In contrast to previous comparisons, which were based on smaller ranges of frequency and were more susceptible to list-specific effects, imagery and frequency were found to be approximately equal in their influence on free recall. 相似文献
197.
Ronald T. Verrillo George A. Gescheider Bruce G. Calman Clayton L. Van Doren 《Attention, perception & psychophysics》1983,33(4):379-387
Masked vibrotactile thresholds at the index fingertip were measured as a function of masker intensities, which were applied to the thenar eminence of the same hand. Test and masker frequencies were selected so that the Pacinian and non-Pacinian receptor systems were selectively activated. Remote-site masking was effective only when both masker and test stimulus were within the frequency range of the Pacinian system. Cross-channel masking did not occur. 相似文献
198.
Clayton L. Van Doren 《Attention, perception & psychophysics》1995,57(4):555-568
Perceived finger span—the perceived spatial separation between the tip of the thumb and the tip of the index finger—was measured by using cross-modal matching to line length. In the first experiment, subjects adjusted finger span to match the length of line segments presented on a video monitor, and conversely, with both hands. Subjects also made estimates of finger span in physical units (“dead reckoning”). Finger spans were measured by using infrared LEDs mounted on the tip of the thumb and the finger tip, so the hand made no contact with any object during the experiment. Unlike in previous studies, the results suggest that perceived finger span is proportional to line length and slightly shorter than the actual span, provided that corrections are made for regression bias. The effect of finger contact was assessed in a second experiment by matching line length both to free span and to spans constrained by the pinching of blocks in the same session. The matching function when subjects were pinching blocks was accelerating, consistent with previous reports. In contrast, matched line length was a decelerating function of free span. The exponent of the free span matching function in the second experiment was slightly smaller than in the first experiment, probably due to uncorrected matching biases in the second experiment. 相似文献
199.
Candice M. Monson Lisa M. Jones P. Clayton Rivers Steven B. Blum 《Journal of Addictions & Offender Counseling》1998,19(1):15-27
The relationship between general and sex-specific alcohol expectancies and drinking before offending was examined in a sample of child sex offenders. Regression analyses revealed that sex-specific expectancies were the single best predictor of the proportion of times the offenders reported drinking before offending, even when the offenders' (preincarceration) customary drinking behaviors were accounted for. These results highlight the importance of assessing expectancies related to particular social domains. Implications for offender treatment and relapse prevention are discussed. 相似文献
200.
Clayton Littlejohn 《Philosophy and phenomenological research》2018,96(2):257-272
In this paper, I present a puzzle about epistemic rationality. It seems plausible that it should be rational to believe a proposition if you have sufficient evidential support for it. It seems plausible that it rationality requires you to conform to the categorical requirements of rationality. It also seems plausible that our first‐order attitudes ought to mesh with our higher‐order attitudes. It seems unfortunate that we cannot accept all three claims about rationality. I will present three ways of trying to resolve this tension and argue that the best way to do this is to reject the idea that strong evidential support is the stuff rationality is made of. In the course of doing this, I shall argue that there is a special class of propositions about the requirements of rationality that we cannot make rational mistakes about and explain how this can be. 相似文献