Implementation of the official protocol --------------------------------------- **Experimenters** * Please describe the qualifications/training of those who will be conducting the testing, and how they were trained on the protocol. Note any expertise with the topic area or methods used in this study.* Sarah Schoch is a student enrolled in the Masters program of psychology. Pierpaolo Primoceri has recently graduated from the same Masters program and is preparing for a dissertation on the subject of ego depletion. Both of them have experience managing and running lab studies. Both of them are familiar with the concepts and methods used in this study. They are well prepared to instruct themselves how to run the experiment in a standardized way based on the protocol, but will do so under the supervision of Johannes Ullrich. **Piloting / training** *Piloting should be done prior to registration of this plan -only after registration of this plan will participants' data be included in the final dataset. Please indicate here who in your lab has piloted the experiment and what they did - ran a pilot participant, ran another lab member as if they were a participant, etc.* Pilot work will be completed as soon as we have access to the German language materials and software. **Experimenter knowledge of expected outcomes** *The person running a participant ("experimenter") is required to explain the tasks to the participant, so the experimenters won't be blind to the condition. Thus the only way demand characteristics might be entirely avoided is if the experimenter doesn't know about the ego depletion phenomenon. Please note whether this is the case for your experimenters, and in the Results component you can later note how you verified this, or whether the experimenter learned during the course of the experiment what the meaning of the conditions was* Experimenters Schoch and Primoceri know about the rationale for the study and the hypotheses. After closely reading the step-by-step procedure it became clear to us that demand characteristics cannot be entirely avoided given the requirement of having the experimenter (instead of the computer program) instruct participants about the different tasks. **Recruiting** *Explain how and from where the participants will be recruited. The study should be described as being on “word and number recognition and reaction time”* **Sample, subjects, and randomization** *Please add details about the planned number of subjects (must be more than 50 in each of the two conditions) in terms of the stopping rule for the data collection, including how you will ensure that they meet the demographic requirements of the protocol (e.g. you will keep running participants who self-register from your subject pool, in blocks of 10, until you have more than 50 in each condition that are 18 to 30 yrs old and until between 30% and 70% are female), how you assess whether the subject had English as their native language, etc.* We will recruit undergraduate students in the age range of 18-30 years. Required age and native language German will be explicitly mentioned in the study advertisement. Based on our previous experience with this participant pool we expect around 60% of the participants to be female. We will advertise on mailing list and at lectures of a wide range of study majors (including STEM) to make sure that the portion of female participants will not exceed 70%. German as native language will be assessed by the experimenters during the interaction with participants. *Will you use truly random assignment (flip a coin for each subject that comes in) or, e.g. generate a sequence containing 50 of each condition in random order and assign subjects based on the sequence until you run all 100? Give details. How will you collect additional data if some Ss have to be excluded? e.g. running blocks of 10 additional participants (with 5 assigned to each condition) until both conditions have at least the minimum sample size* We will throw a die for each participant (odd = easy, even = difficult). We will collect data from 120 participants (anticipating some unusable data) so that we are sure to end up with the minimum of 100 participants. **Setting/Lab/Equipment** *Please add a detailed description of the testing environment. Include details of any equipment/computers you will use. Please indicate the version of the EPRIME software are your machine(s).* Participants will be tested individually using the same laptop (but different rooms depending on availability). We will run the experiment according to the Step-by-step procedure Step-by-step_RS232 and Protocol Protocol_49TQVF. We don't have the EPRIME software.