**EDITOR'S INSTRUCTIONS:** *Use this space to keep notes on testing, listing any problems, accidental deviations from the protocol, or necessary exclusions as they occur. In the case of accidental deviations from the protocol, be sure to also consult the editor (replicationreports@gmail.com) when they occur. When the study is complete, delete this editor instruction, but retain the lab log below.* Lab Log ------- *Provide details about your testing here. This is a good place to note any problems during testing. We recommend recording the time and date of any problems to allow easier verification of your records here.* **September 08th, 2015** 1st session: 11 people showed up instead of 14 (one cancellation earlier via email). Conducted the session with 8 people, 3 will come back next week and received 3,-Euros as show-up fee. One issue arised while calculating the payoff in the excel sheet - a cell in the total group contribution didn't refer to the other three players. As this was discovered just after the session, participants received a sufficient but not the correct amount of money. 2nd session: 10 people showed up instead of 14. We conducted the session with 8 people, 2 will come back next week and received 3,-Euros as show-up fee. For one participant Qualtrics didn't show the last questions (88% completion rate). We don’t know the reasons yet. His / her responses were saved in “responses in progress” and not in recorded responses. 3rd session: N = 12, without any special incidences. **September 09th, 2015** 4th session: 13 people showed up, no incidences, just one IP adress changed from 134.76.136.151 to 134.76.136.184 (cubicle 5). 5th session: 13 people showed up, no incidences. 6th session: 12 people showed up. one group received a too high amount of money as we couldn't find one data set (was hidden on a new page in Qualtrics). We asked the participant about her contribution (after all participants were finished) and she couldn't remember it exactly. She estimated 200 Cents, but gave actually 32 Cents. 7th session: 14 people showed up, no incidences. **September 10th, 2015** 8th session: 12 people showed up, no incidences. 9th session: 12 people showed up, no incidences. 10th session: 13 people showed up, no incidences. 11th session: 13 people showed up, no incidences. **September 11th, 2015** 12th session: 12 people showed up, no incidences. 13th session: 12 people showed up, no incidences. **September 14th, 2015** 14th session: 10 people showed up, no incidences. 15th session: 13 people showed up, no incidences. 16th session: 13 people showed up, no incidences. 17th session: 11 people showed up, no incidences. **September 15th, 2015** 18th session: 13 people showed up, no incidences. 19th session: 12 people showed up, no incidences.