Alternating sessions Sample Clauses

Alternating sessions. There were no significant differences in the percent of prosocial choices when each session was divided into three 10-trial blocks for any reward/partner conditions (in-group/equal: F5,55 = 1.29, NS; in-group/unequal: F5,55 = 1.19, NS; out-group/equal: F5,55 = 2.21, NS; out-group/unequal: F5,55 = 0.55, NS). There were also no significant differences between the two Alternating sessions for any reward/partner conditions (F 1,11 = 1.84, NS). Therefore, the data from both sessions were combined for analysis. 90 80 70 60 50 40 30 20 10 0 Single Actor Alternating Equal, In- group Unequal, Equal, Out- Unequal, In-group group Out-group The level of prosocial behavior increased from the Single Actor sessions to the Alternating sessions with a moderate effect size (F1,11 = 26.11, P < 0.001, ηp2 = 0.70). When the analysis was restricted to only the first 15 choices by each individual (for each condition), there was an even stronger effect (F1,11 = 37.88, P < 0.001, ηp2 = 0.78). One further follow-up analysis was run comparing single actor and alternating sessions for all four reward/partner conditions for each individual. Nine out of twelve individuals chose the prosocial token significantly more during Alternating sessions than during Single Actor sessions (Table 3). Of the three individuals that did not show a significant increase, Star and Gretel showed the opposite effect in the equal/in-group sessions. In other words, both individuals picked the prosocial token less during Alternating sessions as compared to Single Actor sessions when paired with in-group partners with equal rewards. Similarly, ▇▇▇▇▇ decreased from Single Actor to Alternating during out-group/equal rewards sessions. Star 45.88 ± 10.53 66.75 ± 10.43 1.46 Bias 65.38 ± 23.77 82.50 ± 13.39 1.83* ▇▇▇▇▇ 41.88 ± 10.66 50.38 ± 27.27 0.92 Winnie 58.38 ± 26.95 74.35 ± 17.45 1.83* ▇▇▇▇▇▇ 69.63 ± 33.39 91.63 ± 16.75 1.83* Lulu 60.13 ± 15.22 75.88 ± 9.36 1.83* ▇▇▇▇▇ 49.38 ± 12.76 66.88 ± 8.77 1.83* Gretel 57.50 ± 9.12 69.88 ± 24.25 1.10 Snarf 67.63 ± 29.93 92.38 ± 11.09 1.83* ▇▇▇▇▇▇ 58.38 ± 24.77 76.13 ± 9.58 1.83* Wookie 52.5 ± 12.02 70.88 ± 3.01 1.83* ▇▇▇▇▇ 81.00 ± 17.98 92.50 ± 12.77 1.83* 1.83 indicates that in all four partner/reward conditions the individual chose the prosocial token more in alternating sessions than in single actor sessions. * denotes p<.05, all P-values were one-tailed for this analysis.