Implementation of the official protocol --------------------------------------- **Experimenters** The investigator (Malte Elson) will also act as experimenter: Postdoctoral researcher, many years of experience in psychological laboratory experiments, conducted and/or supervised dozens of laboratoy studies with computerized tasks and tests; trained on the protocol by piloting. **Piloting / training** Experimenter has piloted this study with other lab members as if they were participants, all of which were Bachelor and Master student research assistants (German: Studentische Hilfskräfte) from the same population as the actual sample. **Experimenter knowledge of expected outcomes** This is not the case here, the experimenter knows about the ego depletion phenomenon and the hypotheses. **Recruiting** Participants will be recruited on campus and through student email lists. Participants will be university students, of which many will probably have a background in psychology and educational sciences (although participant will not be formally limited to those). **Sample, subjects, and randomization** I am aiming at running at least N = 168 participants, it will definitely be more than 50 in each condition. Stopping condition will be when I run out of money or reach the end of July, whatever happens first.It will be explicitly stated that students older than 30 cannot participate during the recruiting phase; this will also be checked personally with every participant when they come to the lab (the same applies to the requirement of German as native language). During recruiting all slots will be available from the start (at least N = 170), i.e. there will be no recruiting in blocks. For the first 100 participants, assignment will be truly random with a pre-generated sequence (so that the 50 per cell criterion is met). After that, assignment will be truly random with a coin flip for each individual participant. **Setting/Lab/Equipment** Our lab consists of two completely separate rooms (not cubicles!) equipped with laptops. If absolutely necessary, I can try to acquire larger monitors. We do not have a bell or a similar device. Instead, a second laptop on which the participants indicate when they completed steps in the experiment will be used. The rooms are otherwise “sterile” and should meet the requirements specified in the protocol. The investigator will sit in one of those rooms in a seperated area (similar to a cubicle). E-Prime 2.0.1 is installed on all machines. I will be following Appendix A _Step-by-Step Procedure_German.docx (https://osf.io/fzsr7/) for which there is a backtranslation (https://osf.io/qpn4j/) as well as Hagger_ego_depletion_RRR_FINAL_Protocol.pdf (https://osf.io/fy5di/), with a few exceptions: 1. I will use a second screen instead of a bell to allow participants to inform the experimenter when they are done with a task. 2. Instead of handing out paper/pencil forms, the second screen (using the Unipark survey software) will also be used to fill in a) Biological sex and age of the participant (by the experimenter) b) the final questionnaire (by the participants) 3. The experimenter will not leave the room, but will be sitting on one of the two labs behind screens (like in an office cubicle).