Which one of the following is not one of the main characteristics of Taylor’s scientific management ?

Participatory decision making is not a core Taylorist technique; task study, incentive rates and functional foremanship are. Therefore, ‘Participation in decision making’ is the correct choice because it does not satisfy the condition in the question, whereas ‘Time and motion studies’, ‘Differential piece-rate system’, and ‘Functional foremanship’ represent valid features or accurate associations in this context.