Table 2. GLM to investigate factors affecting probability that Player 1 would comply with the ‘give $0.50’ norm.

Model Rank	Parameters	df	AICc	wi
1	Age + Treatment	4	783.7	0.32
2	Treatment	3	784.1	0.26
3	Gender + Treatment	4	784.5	0.21
4	Age + Gender + Treatment	5	784.6	0.21

The table shows the top models (models within 2AICc units of the best model), with AICc values and Akaike weights (wⁱ). The best model is highlighted.