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Table 4 t-tests of the probability of code development as a function of experimental condition

From: When three’s a crowd: how relational structure and social history shape organizational codes in triads

Panel 1 All groups (N = 1515) All groups (N = 1515) All groups (N = 1515)    
  Transparent com’n Private com’n Difference Strangers Not all strangers Difference Acyclic Cyclic Difference    
P (not completely divergent | entire set of codes) 0.95 (0.22) 0.92 (0.28) 0.03** 0.93 (0.26) 0.93 (0.26) 0 0.93 (0.26) 0.93 (0.26) 0    
P (at least one group code exists | not completely divergent) 0.74 (0.44) 0.52 (0.50) 0.21** 0.53 (0.50) 0.62 (0.49) −0.09** 0.59 (0.49) 0.62 (0.49) −0.03    
P (a single group code exists | some group code exists) 0.86 (0.35) 0.67 (0.50) 0.18** 0.71 (0.45) 0.76 (0.42) −0.05 0.76 (0.43) 0.76 (0.43) 0    
P (a one-word label is used by entire group | a single group code) 0.05 (0.22) 0.01 (0.11) 0.04** 0.04 (0.20) 0.03 (0.18) 0.01 0.04 (0.19) 0.03 (0.17) 0.01    
Panel 2 All groups with private comm’n (N = 947) All groups with transparent comm’n (N = 568) All groups with private comm’n (N = 947) All groups with transparent comm’n (N = 568)
  Acyclic Cyclic Difference Acyclic Cyclic Difference Strangers Not all strangers Difference Strangers Not all strangers Difference
P (not completely divergent | entire set of codes) 0.92 (0.28) 0.91 (0.27) 0.01 0.94 (0.24) 0.95 (0.21) −0.01 0.93 (0.25) 0.91 (0.28) 0.02 0.92 (0.28) 0.95 (0.22) −0.03
P (at least one group code exists | not completely divergent) 0.53 (0.50) 0.52 (0.50) 0 0.71 (0.46) 0.77 (0.42) −0.07* 0.49 (0.50) 0.53 (0.50) −0.04 0.64 (0.49) 0.75 (0.43) −0.11*
P (a single group code exists | some group code exists) 0.67 (0.47) 0.67 (0.47) 0 0.86 (0.35) 0.85 (0.36) 0.01 0.63 (0.49) 0.68 (0.47) −0.05 0.93 (0.26) 0.85 (0.36) 0.07
P (a one-word label is used by entire group | a single group code) 0.1 (0.11) 0.1 (0.11) 0 0.06 (0.24) 0.05 (0.21) 0.01 0.02 (0.15) 0.01 (0.11) 0.01 0.08 (0.27) 0.05 (0.22) 0.03
Panel 3 All acyclic groups (N = 755) Groups composed of strangers (N = 207) Acyclic groups with private comm’n (N = 470) Groups composed of strangers with private comm’n (N = 159)
  Strangers Not all strangers Difference Acyclic Cyclic Difference Strangers Not all strangers Difference Acyclic Cyclic Difference
P (not completely divergent | entire set of codes) 0.93 (0.26) 0.93 (0.27) 0 0.93 (0.26) 0.92 (0.27) 0.01 0.94 (0.23) 0.91 (0.29) 0.03 0.94 (0.23) 0.88 (0.34) 0.07†
P (at least one group code exists | not completely divergent) 0.48 (0.50) 0.62 (0.49) −0.14** 0.48 (0.50) 0.63 (0.49) −0.15* 0.47 (0.50) 0.55 (0.50) −0.08† 0.46 (0.50) 0.61 (0.50) −0.14†
P (a single group code exists | some group code exists) 0.57 (0.50) 0.79 (0.41) −0.21** 0.58 (0.50) 0.95 (0.23) −0.37** 0.54 (0.50) 0.72 (0.45) −0.18** 0.54 (0.50) 0.94 (0.24) −0.41**
P (a one-word label is used by entire group | a single group code) 0.05 (0.23) 0.04 (0.19) 0.01 0.05 (0.20) 0.03 (0.17) 0.03 0 (0) 0.02 (0.13) −0.02 0 (0) 0.06 (0.25) −0.06†
Panel 4 All groups with private comm’n (N = 947) Acyclic groups with private comm’n (N = 470) Acyclic groups composed of strangers with private comm’n (N = 127)    
  Clear structure Unclear structure Difference Clear structure Unclear structure Difference Clear structure Unclear structure Difference    
P (not completely divergent | entire set of codes) 0.88 (0.32) 0.93 (0.25) −0.05** 0.91 (0.28) 0.92 (0.27) −0.01 0.98 (0.15) 0.93 (0.27) 0.05    
P (at least one group code exists | not completely divergent) 0.51 (0.50) 0.53 (0.50) −0.02 0.53 (0.50) 0.52 (0.50) 0.01 0.46 (0.50) 0.47 (0.50) −0.01    
P (a single group code exists | some group code exists) 0.65 (0.48) 0.68 (0.47) −0.03 0.66 (0.48) 0.69 (0.47) −0.03 0.48 (0.51) 0.57 (0.50) −0.09    
P (a one-word label is used by entire group | a single group code) 0 (0) 0.02 (0.14) −0.02† 0 (0) 0.02 (0.15) −0.02 0 (0) 0 (0) 0    
  1. Standard deviations are in parentheses
  2. Single-tailed, two-sample t-tests with equal variances; ** p < 0.01; * p < 0.05; †p < 0.1