Studies of Psychology and Behavior

Studies of Psychology and Behavior ›› 2022, Vol. 20 ›› Issue (1): 29-36.DOI: 10.12139/j.1672-0628.2022.01.005

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The Impact of Description-Experience Conflict on Individual Risky Decision-Making: Decision Model Fitting

ZHOU Guangfang1,2, WEI Zihan1,2,3, OUYANG Liangyuan4, NGURE Mary Muthoni1,2, WANG Xiaozhuang1,2,3   

  1. 1. Key Research Base of Humanities and Social Sciences of the Ministry of Education, Academy of Psychology and Behavior, Tianjin Normal University, Tianjin 300387;
    2. Faculty of Psychology, Tianjin Normal University, Tianjin 300387;
    3. Tianjin Social Science Laboratory of Students’ Mental Development and Learning, Tianjin 300387;
    4. Tianjin Vocational College of Mechanics and Electricity, Tianjin 300350
  • Received:2021-07-12 Online:2022-01-20

描述信息与经验不一致对个体风险选择的影响：决策模型的拟合

周广方1,2, 魏子晗1,2,3, 欧阳良媛4, Ngure Mary Muthoni1,2, 王晓庄1,2,3   

  1. 1. 教育部人文社会科学重点研究基地天津师范大学心理与行为研究院，天津 300387;
    2. 天津师范大学心理学部，天津 300387;
    3. 学生心理发展与学习天津市高校社会科学实验室，天津 300387;
    4. 天津机电职业技术学院，天津 300350
  • 通讯作者: 王晓庄,E-mail:wangxiaozhuang@tjnu.edu.cn
  • 基金资助:
    天津市哲学社会科学规划课题（TJJX18-012）

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Abstract: This study used the description-experience conflict paradigm to investigate the influence of description-experience inconsistency on individual risk choices in gain and loss situations, and explore its internal mechanism through decision model fitting. Both Study 1a and Study 1b adopted a single-factor between-subjects design. The independent variable was the degree of inconsistency between description and experience, and the dependent variable was the proportion of risky choices (R-rate). Results showed that in gain situations, the R-rate was not significantly influenced by degree of inconsistency between description and experience; while in the loss situations, the R-rate was significantly influenced. Study 2 found that the description’s weight parameter (ξ) in the gain situations was significantly smaller than that in the loss situations; while the recency parameter (?) was significantly larger than that in the loss situations. Therefore, under the condition of description-experience inconsistency, the individuals in loss situations were more inclined to make decisions based on the descriptive information than those in the gain situations.

Key words: gain and loss situation, decision from description, decision from experience, decision model

摘要： 采用描述−经验冲突范式，考察损益情境下，描述信息与经验不一致对个体风险选择的影响，通过模型拟合探究其内在机制。研究1a和研究1b采用单因素被试间设计，自变量为描述信息与经验不一致程度，因变量为风险选项选择率。结果发现，获益情境中，描述信息与经验不一致程度的主效应不显著；而损失情境中，风险选项选择率受到显著影响。研究2比较决策模型参数发现，获益情境中，描述信息权重参数ξ和选择一致性参数c显著小于损失情境，而近因参数φ显著大于损失情境。这表明，当描述信息与经验不一致时，相对于获益情境，损失情境下个体更大程度地采用描述信息进行决策。研究揭示了损益情境中描述信息与经验不一致影响个体风险选择的机制。

关键词: 损益情境, 描述决策, 经验决策, 决策模型

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