In comparing different methods by which a teacher' s performance can be evaluated and educational outcomes improved, researchers found that a critique of teacher performance leads to enhanced educational outcomes if the critique is accompanied by the information that teacher performance is merely one of several factors that, in concert with other factors, determines the educational outcomes
It is easier to correct the mistakes of an athlete if it is made clear to him that the criticism is part of an overarching effort to rectify the shortcomings of the entire team on which he plays.