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The whole experiment will be administered in a laboratory setting, on computers with a custom written Python program. Choice blindness was previously demonstrated on computer by Johansson, Hall and Sikström (2008). The whole experiment will be conducted in Czech. Participants will be given descriptions of 40 situations where a person behaves in a way that can be considered morally wrong. The situations will be presented one at a time and in an order randomized for each participant. A question asking about morality of the behavior in the situation will be present on a screen from the beginning, while the description of each situation will be first presented as a running text. Once the whole text is shown in this way, the full scenario will be displayed and participants will be able to answer the question and move to the next scenario afterwards. After judging all provided situations, participants will be told they will read the descriptions again and answer an additional question for each situation. We will once again present them all scenarios (in the same order and in the same way as during the first presentation) and ask them whether they initially decided intuitively or deliberatively and give them an opportunity to change their initial answer. Importantly, participants will be randomly split in two groups. One group will be shown their initial answer during the whole presentation of the description. The other group will be shown their answer only after the description is displayed in full. Five of the 40 initial answers will be changed during the second presentation. That is, participants who answered “Yes” will be presented with “No” as they supposedly initial answer and vice versa. As usual in choice blindness research, after the experiment we will ask participants a series of increasingly specific questions in order to find out whether they noticed anything strange about the experiment in general or the manipulation itself in particular. At the end, all participants will be fully debriefed about the true aim of the experiment. <br> References Johansson, P., Hall, L. & Sikstrӧm, S. (2008). From change blindness to choice blindness. *Psychologia, 51*, 142–155.
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