A group management package in which the group is divided into two or more teams, and rules are specified. In its original form, a team received a cheque against it if a member violated one of the niles. Reinforcers were provided for each team with fewer than the criterion number of marks or for the team with the fewest marks at the end of a preset period. Now its use frequently involves reinforcing consequences as well as punishment, such as providing points exchangeable for reinforcers for a team when its members act according to the rules.