報酬分配における将来の相互作用への期待の効果 被分配者の存在との関連において

松崎 学; 相川 充; 上野 徳美

doi:10.4992/jjpsy.51.120

THE EFFECTS OF EXPECTATION OF FUTURE INTERACTION ON REWARD ALLOCATION

THE ROLE OF THE ALLOCATION PARTNER'S PRESENCE

MANABU MATSUZAKI, ATSUSHI AIKAWA, TOKUMI UENO

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JOURNAL FREE ACCESS

1980 Volume 51 Issue 3 Pages 120-127

DOI https://doi.org/10.4992/jjpsy.51.120

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Published: September 20, 1980 Received: May 12, 1979 Available on J-STAGE: July 16, 2010 Accepted: - Advance online publication: - Revised: -
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Date of correction: July 16, 2010 Reason for correction: - Correction: ABSTRACT Details: Wrong : Shapiro (1975) found that when future interaction was expected, high input allocators divided the reward equally and when no future interaction was expected the reward were divided according to equity, and that low input allocators divided the reward according to equity regardless of their expectation of future interaction (EFI). However, the EFI that Shapiro manipulated may have been confounded with another factor: Whether the partner of allocation was present or not. The first purpose of this study was to refine the effect of EFI on reward allocation in a dyad. The second purpose was to distinguish between the effect of EFI and the effect of the presence of a partner of allocation.
The procedure was the same in Experiment I and Experiment II. However, the partner of allocation was present in the same room in Experiment I but not in Experiment II. EFI and level of input were manipulated in a 2×2 factorial design. The subjects were 64 female undergraduates and were randomly assigned to each condition (n=16per cell) in each experiment. A subject was brought into the laboratory with a confederate who served as her partner. After the dyad finished the task in 15min, they were informed of the scores they earned and the amount of the joint reward (1010 yen). The allocator, as determined by fake lot, divided this joint reward. The percentage of the reward allocated to herself (allocator) was the main dependent variable. Under the EFI condition the dyad were told that they would have a meeting after allocation of the reward. Under the No EFI condition, however, they were told that they could leave immediately after the allocation. The level of input was manipulated by providing false feedback on the number of scores which each person had earned on the experimental task. The high input subject scored 327 points (65%) for a total of 503 points and the low input subject scored 176 points (35%).
The results showed that high input subject allocated less reward to herself in the EFI condition than in the No EFI condition when the partner was present (Experiment I). However, when the partner was not present (Experiment II), there was no difference between the EFI condition and the No EFI condition in the mean percentage of reward allocated to herself. On the other hand, in a low input condition there was no significant difference in mean percentage of allocation between the EFI condition and the No EFI condition in both experiments. It was also found that subjects allocated less reward to themselves in Experiment I than in Experiment II.
The result of high input subjects in Experiment II differs from Shapiro's findings. The results were discussed in terms of self-presentation. It is suggested that the interpretation of self-presentation is valid only in the situation where the partner is aware of the mode of allocation.
Right : Two experiments were conducted to examine the effects of expectations of future interaction (EFI) on reward allocations in dyads (Shapiro, 1975). Each subject divided the reward between herself and a confederate after they had made unequal work contributions. The partner of allocation was present in the same room in experiment I but not present in Experiment II. The result showed that EFI significantly affected the allocation under a high input condition in Experiment I but not in Experiment II. The results were discussed in terms of self-presentation of allocators.

Abstract

Two experiments were conducted to examine the effects of expectations of future interaction (EFI) on reward allocations in dyads (Shapiro, 1975). Each subject divided the reward between herself and a confederate after they had made unequal work contributions. The partner of allocation was present in the same room in experiment I but not present in Experiment II. The result showed that EFI significantly affected the allocation under a high input condition in Experiment I but not in Experiment II. The results were discussed in terms of self-presentation of allocators.

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