Journal
JOURNAL OF EXPERIMENTAL SOCIAL PSYCHOLOGY
Volume 83, Issue -, Pages 132-141Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jesp.2019.04.003
Keywords
Decision-making; Information need; Random device; Coin flip
Categories
Funding
- Swiss National Science Foundation [100019_159445]
- Swiss National Science Foundation (SNF) [100019_159445] Funding Source: Swiss National Science Foundation (SNF)
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When deciding between two options, settling can be difficult if one option is superior on one dimension but inferior on another. To arrive at a conclusion, people may gather further information, thereby running the risk of prolonging or blocking the decision-making process or even making suboptimal decisions. I lere, we suggest that random decision aids may prove fruitful by reducing the need for further information. Five experiments (total N = 997) examined how information need is influenced after making a preliminary decision between two options and then receiving a suggestion from a random decision aid (a coin flip). Across studies, coin participants are less likely to request additional information (Study 1 and two follow-up studies, combined p =.021) and indicate a lower need for additional information (Study 2, p =.023, and Study 3, p =.001) compared to a control condition without a coin flip. Interestingly, participants do not necessarily adhere to the coin but stick to their preliminary decision as much as or even more than the control group, suggesting that the decision aid does not determine the decision outcome. This is true for hypothetical decisions between changing versus maintaining the status quo without an objectively correct solution (Studies 1, lb, and 1c), for a decision between two options with an objectively correct solution (Study 2), and for a real monetary decision without an objectively correct solution (Study 3). Random decision aids may thus help to avoid decision blocks or the collection of too much information.
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