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"Five groups of rats were trained to escape shocks of 120, 160, 240, 320, and 400 v. in a straight alley by running to an uncharged goalbox. Running speed was found to be an increasing, negatively accelerated function of shock intensity, but starting speed was nonmonotonically related to shock...
Hypothesized that if S is unsure of the response which is to be learned, the effects of intertrial interval and of knowledge of results (KR) may be different from that reported in other studies. Found that intertrial interval confounded, as it may be, with post-KR delay appears critical rather...
"Thirty Ss learned one of two paired-associate lists of 12 pairs and were then presented with a list of 12 nouns and were instructed to discover into what three groups the nouns could be divided and what adjectives could describe each group. The paired-associate lists were each designed by a...
Reports an error in the original article by Jensen and Cotton (Journal of Experimental Psychology, 60, 1960, 41-49). A figure was to have appeared as Part B of Fig. 1 in connection with the text on pp. 42-43. The figure is provided here. Rats were given 30 rewarded trials in a runway. On...
Paired-associate lists were constructed so that 4 words were paired with the same nonsense syllable response. The differences in learning the lists were not related to the ratings of association between the stimuli. Found that differential difficulty was due to differential intragroup transfer...
"Measurements were made with two Ss, by a constant stimulus method, of magnitude of figural displacement as a function of position of the figures. Generally, displacement is greatest when the interacting figures are peripherally placed within the central visual field. This result is consistent...
The figure-ground reversible pattern was a circle divided into 6 or 8 sectors. Alternate sectors had a constant hue and brightness which differed in the alternate sets. Measured the percent of time each set of sectors was observed during a given observation period.
Suggests an alternative to the maximization of expected utility model. Using college Ss, a "study was carried out on bets which were constant in expectation but which varied in skewness or variance with the other variable held constant. Replicated pair comparisons permitted measurement of...
Ss were selected to represent the entire range of Manifest Anxiety scale scores and were tested in eyelid conditioning study. The correlation between total number of CRs over 80 trials and Manifest Anxiety scale score was linear and significant.
"Human Ss were required to choose between a known payoff and an unknown payoff (the risk) on each of 100 trials. As the range of unknown payoffs increased, Ss deviated more from an optimal strategy which required that they always gamble when the known payoff was negative, and never when it was...
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