Listen to your mother: Motivating tones of voice predict adolescents’ reactions to mothers.

Virtually nothing is known about the role that tone of voice may play in motivating interactions. Herein, we use an experimental approach to explore for the first time how the same directive instructions ("Do well at the play") have different effects on adolescents depending on the motivational tone of voice used to convey these instructions. A sample of 1,000 adolescents aged 14-15 years was randomly assigned to hearing semantically identical...