Much or More? Experiments of Rationality and Spite with School Children Original Data set. Data was collected as a binary choice coded in the following way: 0 - played min ; 1 - played max Each row represents player A and B of each game and each column represents treatment; the 5 rounds of the game; payoff for each round; total payoff of the 5 rounds; age of the player, school year of the player and school of the player. Name of schools are coded inside the file. See original article for references on how data was collected and analysed.