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Philipp & Cannon Replication of Sripada et al 2014 Lab-specific implementation of the official protocol --------------------------------------- **Experimenters** > The team conducting the replication includes Dr. Michael Philipp, Dr. Peter Cannon, Natalie Nikora, Olivia Sievwright, Randi Nehls, Joshua Ziolkowski, and Stephen Fraser-Clark. All members of the team are trained in experimental methods and have experience working with human participants. Each experimenter trained on the protocol by pilot testing the protocol with a minimum of four participants before commencing data collection. **Piloting / training** > Each experimenter pilot tested a minimum of four participants before starting formal data collection for the study. Approximately half of the pilot participants were recruited through experimenters' networks and the other half of the pilot participants were other members of the lab. **Recruiting** > Participants will be recruited through verbal invitations at university lectures, local student job search websites, and paper notices placed on local noticeboards. **Sample, subjects, and randomization** >Participants' eligibility for the study will be determined through their responses on a short intake measure that will ask them to provide their age, gender, and whether they are a native English speaker. Participants not meeting the eligibility requirements for this study will be offered an alternative study to participate in. >Conditions will be randomised in blocks of ten (using www.random.org) such that for each block there were five instances of each condition. After collecting data from 80 eligible participants we will examine the sex distribution of the sample and identify any data that meets the protocol's exclusion criteria. After applying the exclusion criteria, if either sex comprises more than 70% of the sample we will exclusively collect data from the under-represented sex in blocks of ten participant until we have at least 30% of each sex represented in the sample. After collecting data from 110 eligible participants we will again examine the sex distribution of the sample and identify any data that does not meet the protocol's exclusion criteria. Thereafter, we will continue collecting data in blocks of 10 until one of the below stopping rules applies. >We will stop data collection when one of the following criteria is met: >1. 55 participants have completed both conditions and between 30% and 70% of the sample is female. >OR >2. June 21, 2015 **Setting/Lab/Equipment** > Participants will complete the study on a Windows desktop computer running EPRIME v2. Each participant will be tested alone in a sound-attenuated laboratory environment. An experimenter will be present in the lab, but out of sight from the participant (i.e., either in an adjoining observation room or behind a nearby partition). A wireless doorbell will be used by participants to signal when they have completed different tasks. **Modified Step-by-step procedure** > [Our modified step by step procedures][1] are originally based on the RRR document titled [A_Step_by_Step_procedure.pdf][2] downloaded from OSF RRR- Ego Depletion (Sripada et al.) project ([osf.io/jymhe][3]) in November 2014. Formatting was added to the original document to enhance readability, and procedures were modified to accommodate a second experimenter (Researcher B) who would remain blind to the assigned condition by taking over each testing session following completion of the main letter ā€œeā€ task. Our step by step procedures are further modified to accommodate changes reflected in the RRR document titled [A_Step_by_Step_procedure_Feb_2015.pdf][4] (version ID 2) downloaded from OSF RRR- Ego Depletion (Sripada et al.) project ([osf.io/jymhe][5]). [Downloading our modified step by step procedures][6] will give readers access to annotations (comments in MS Word) that highlight the specific modifications we have made to the original document. [1]: https://osf.io/ed4b5/ [2]: https://osf.io/jbtxy/ [3]: http://osf.io/jymhe [4]: https://osf.io/nfc6m/ [5]: http://osf.io/jymhe [6]: https://osf.io/ed4b5/?action=download&version=1
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