[2] In an experiment to test the blissful ignorance effect, two groups were created and told information about a product.
[3] The Blissful Ignorance Effect (BIE) involves two key factors: the nature of the presented information (precise vs vague) and the time of occurrence of a decision (before vs after).
[4][5] The interaction between these two goals, taking into account the nature of information presented in both time conditions, explains the BIE in decision-making.
Specifically, before the decision-making phase, since the individual has not committed to a choice yet, the aim is to achieve a high level of accuracy in information to influence the judgement of outcome of that decision.
This means that the individual would want to feel good about the action taken and believe that the decision would yield positive consequences.
[6] However, concrete evidence of vagueness aversion has only been proven in pre-decision phases, before the individual commits to a choice.
Deliberative mindsets tend to have an accurate and unbiased analysis of information that aims to select for desirable and feasible goals,[8] but only in the pre-decision phase.
To avoid this dissonance, individuals would aim to acquire as vague information as possible after the decision-making process in order to be contented with that decision.