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271.
Mental hospital patients were reinforced for responding in a two-response operant situation. When a noise was used to punish one of the responses, all subjects shifted to the unpunished one. When the noise was then paired with positive reinforcement, the subjects responded to produce the noise. Also, a novel response was reinforced by noise in the absence of other reinforcers. This study with humans extends the findings of previous studies with animals in revealing how a punishing stimulus can acquire discriminative or conditioned reinforcing properties. 相似文献
272.
Monkeys' performance on ambiguous-cue problems 总被引:1,自引:0,他引:1
273.
Interpersonal anxiety as a function of social class 总被引:1,自引:0,他引:1
274.
J. N. Srivastava 《Psychometrika》1966,31(2):147-164
Let x be ap-component random variable having a multivariate normal distribution with covariance matrix . In this paper, we consider the problem of testing hypotheses of the formH
0: =b
11 + +b
m
m
, whereb
i
's are unknown scalars, and
i
's are a set of known and simultaneously diagonalizable matrices. This problem has both psychometric and statistical interest, and its basic theory is developed here. Besides, the problem of obtaining likelihood-ratio statistic for testingH
0 is studied, and the statistic obtained in a special case. 相似文献
275.
276.
N A Milgram 《Journal of experimental child psychology》1967,5(4):597-603
277.
278.
Sequential response effects in the white rat during conditioning and extinction on a DRL schedule, 下载免费PDF全文
D. P. Ferraro W. N. Schoenfeld A. G. Snapper 《Journal of the experimental analysis of behavior》1965,8(4):255-260
Sequential IRT data were obtained for three rats on a DRL 60-sec reinforcement schedule. It was found that first-order sequential dependencies exist under this schedule, including the partial dependence of the length of any given IRT on the length of the preceding IRT. The sequential analysis also served to extend the finding in the literature, based on frequency distributions, that the likelihood of a reinforced IRT is greater after a reinforced IRT than a non-reinforced IRT. Rapid extinction and reconditioning were obtained. 相似文献
279.
280.