Results and Analyses

Participants and Procedure

A total of 170 students were recruited from the undergraduate student subject pool at Arizona State University. After we applied the exclusion criteria as described below, 165 students comprised the final sample (Time Pressure n=81; Forced Delay n=79; missing n=5). Most of the students were psychology majors (n=126), but non-psychology majors were also allowed to participate (n=39). Psychology majors were provided with 2 research credits in our psychology subject pool in lieu of a monetary show-up fee, and the non-psychology majors were provided a $5 show-up fee in lieu of the research credits. Participants were tested in groups, with groups ranging in size from 4 to 16 (M=9.38). As described in the “differences from the official protocol” section of our lab’s Open Science Framework (OSF) implementation page, we decided to run in groups that sometimes were not multiples of 4 given the unique constraints of data collection on our campus (i.e., a small subject pool on the ASU West Campus and a tight timeline for data collection). We altered the formula for calculating payments to correspond with the number of people in the smaller groups in each session (which ranged from 3-5, further description on our OSF page). We used the provided Qualtrics script with one change: we created an additional question on the first page that asked "What is your computer number" into which we could indicate the number affixed to the computer rather than the IP address as per the official protocol. This change enabled us to track an individual participant through the study and assign them to groups within the session in order to calculate payouts. In all other respects, we followed the official protocol.

Results

Results are reported in the RRR paper (Bouwmeester et al., in press).

Excluded data: Thirty lines of data from the originally downloaded data file were excluded, per the official protocol. Specifically, one line of data was excluded because it was entered in error by us as researchers - it did not correspond to an actual participant [we knew which line was entered in error because we marked "throw away this data" in the qualtrics survey directly that we started in error]. Four participants' data were excluded because they did not meet the age requirements - these 4 people were over 35 years of age. And the remaining 25 lines that were removed were blank - the sessions were started in Qualtrics, but the participants did not show up or start the survey, so these lines had no data in them. The datafile that includes a note describing which 30 lines of data were excluded and why is uploaded here (titled "Neal_Rand_Data_30 Ss marked to remove").

Datset: The "cleaned" dataset we used for analysis that excluded the 30 lines of data as described in the above paragraph is uploaded on this page. Title is "Neal_Rand_Data_Final".