Japanese Psychological Research
Online ISSN : 1468-5884
Print ISSN : 0021-5368
Volume 11, Issue 2
Displaying 1-5 of 5 articles from this issue
  • MIRZA S. SAIYADAIN
    1969 Volume 11 Issue 2 Pages 41-45
    Published: 1969
    Released on J-STAGE: February 24, 2009
    JOURNAL FREE ACCESS
    Studies in the field of persuasion and communication have used known sources to test the effect of credibility on influence. What pattern of opinion change occurs when Ss themselves identify the credibility of the communicator, is the concern of this study. PROCEDURE: In a reading comprehension-testsituation Ss made their judgements about their degree of agreement with the author on an issue. RESULTS:(1) Opinion change was found to be curvilinearly related with low prestige source.(2) Variation in the prestige of the communicator did not make any significant difference.(3) The two curves interacted significantly showing that at some points the means of the two sources are significantly away from each other.
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  • KEN GORYO
    1969 Volume 11 Issue 2 Pages 46-53
    Published: 1969
    Released on J-STAGE: February 24, 2009
    JOURNAL FREE ACCESS
    This study examined the effect of the amount of past experience upon the binocular rivalry between one of portraits of male students (F-figure) and a geometrical figure (G-figure). Prior to the observation of binocular rivalry, F-figures were presented with different frequencies in the paradigm of pairedassociate learning between F-figures and the family names randomly assigned to them. The results showed the tendency that the relative dominance of F-figure over the other in binocular rivalry systematically increases as the frequency of previous presentation (PF) of the F-figures increases.
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  • SHIGEO KASHIWAGI
    1969 Volume 11 Issue 2 Pages 54-65
    Published: 1969
    Released on J-STAGE: February 24, 2009
    JOURNAL FREE ACCESS
    We propose to apply the Weibull distribution to the analysis of mental test scores. As the first place, we review the distribution theory of test scores by Lord (1952) and suggest the relationship between the theory and the shape parameter of this distribution.
    First of all, we describe the simple Weibull distribution and the discussion concerning the estimation of the shape parameter is made. Especially, the emphasis is placed on the method by means of the Weibull Probability Paper (wpp), and it is pointed out that the method is very useful and recommendable in view of being accurate practically.
    Secondly, we discuss the concept of measurability of test, and make comment on the difference between the discriminability of test and the measurability. And further, the mixed or composite Weibull distribution is suggested to be useful under a certain condition.
    Finally, several numerical examples are presented and we discuss some of the important aspects of our method based on the Weibull distribution.
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  • TSUNEKO YOSHIDA, MASAKO KAI, HIROSHI IMADA
    1969 Volume 11 Issue 2 Pages 66-75
    Published: 1969
    Released on J-STAGE: February 24, 2009
    JOURNAL FREE ACCESS
    Two CER experiments were conducted with ‘licking’ as the criterion response. In Experiment I, rats'(N=12) number of tongue laps in a drinking box was significantly suppressed by the presentation of a CS which had been paired with electric shock previously. This suppression was not observed in the control group of 11 Ss. In Experiment II, the effect of US intensity upon CER was tested with 11 Ss using a within-subject design. The CS's of two modalities were reinforced with electric shock of two intensities in a balanced design. The Ss' drinking response was significantly more suppressed by the presentation of a CS which had been paired with stronger shock than of that with weaker shock. The results were discussed mainly from a methodological point of view.
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  • DETERMINATION OF THE EFFECTIVE ORDER OF ENTROPY ASSOCIATED WITH REINFORCEMENT PATTERN
    YOSHIMASA HABU, SHIGERU ONO
    1969 Volume 11 Issue 2 Pages 76-87
    Published: 1969
    Released on J-STAGE: February 24, 2009
    JOURNAL FREE ACCESS
    The basic assumption is that with a constant percentage of reinforcement, resistance to extinction (RE) would be a function of uncertainty associated with a reinforcement pattern. 3 groups of rats (double-alternation, 50% random, and continuous) were run in a runway. The last group extinguished most rapidly. No difference in RE was found between the other 2 groups. The conditional entropy of reinforcement-response sequences for the alternation group, as compared with the random group, failed to decrease when its orders were the 3rd or higher. These findings indicate that the second-order conditional entropy will be appropriate for quantifying the uncertainty in question. It was proposed that the RE as determined by uncertainty would be accounted for through intelligibility hypothesis, arousal hypothesis, or probability learning hypothesis.
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