as Blumberg says (1968, p. 79) so f.ar as the psychological effects are concerned, the empirical evidence shows that 'what is crucial .•• is the ability and power of a group to arrive at a decision'.
as Blumberg says (1968, p. 79) so f.ar as the psychologicaleffects are concerned, the empirical evidence shows that 'what iscrucial .•• is the ability and power of a group to arrive at a decision'.