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Chapter 1 - Universiteit Twente

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Dependent measure<br />

Stage One: Weakening the Ramparts<br />

To measure self-regulatory resource depletion, in both conditions participants were<br />

presented with a figure-tracing puzzle (Baumeister et al., 1998). To introduce this task,<br />

the confederate explained that she was also collecting data for a short study and was<br />

looking for participants. The confederate then gave instructions to trace a geometric<br />

figure (see Figure 2) without retracing any lines and without lifting the pencil from the<br />

paper. Multiple slips of paper were provided so that participants could make multiple<br />

attempts. They were told that they could take as much time and as many trials as they<br />

needed, and that they could stop whenever they wanted. Unbeknownst to participants,<br />

the task was impossible to solve. The amount of time participants worked on the<br />

unsolvable puzzle and the number of attempts they made were our measures of selfregulatory<br />

resource depletion (cf. Baumeister et al., 1998). When participants decided to<br />

stop, they were debriefed and thanked.<br />

Figure 2. Geometric figure-tracing puzzle.<br />

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