This data set contains estimates of movement length (in inches) of a light in a completely dark room. Eight groups of three individuals provided three estimates for a total of 72 observations. In four of the groups, participants first made estimates alone prior to providing estimates as a group. In the other four groups participants started as groups. Lang and Bliese (forthcoming) used these data to illustrate how variance functions in mixed-effects models (lme) could be used to test whether groups displayed consensus emergence. Data were obtained from https://brocku.ca/MeadProject/Sherif/Sherif_1935a/Sherif_1935a_3.html
data(sherifdat)A dataframe with 5 columns and 72 observations
| [,1] | person | numeric | Participant ID within a group |
| [,2] | time | numeric | Measurment Occasion |
| [,3] | group | numeric | Group Identifier |
| [,4] | y | numeric | Estimate of movement length in inches |
| [,4] | condition | numeric | Experimental Condition for either starting individually (1) or as a group (0) |
Sherif, M. (1935). A study of some social factors in perception: Chapter 3. Archives of Psychology, 27, 23- 46.
https://brocku.ca/MeadProject/Sherif/Sherif_1935a/Sherif_1935a_3.html
Lang, J. W. B., & Bliese, P. D. (forthcoming). A Temporal Perspective on Emergence: Using 3-level Mixed Effects Models to Track Consensus Emergence in Groups.