A Nurse Is Reading an Article by Heater, Becker, and Olson

A nurse is reading an article by Heater, Becker, and Olson (1988) , who conducted a meta-analysis to determine the contribution of research-based nursing practice to client outcomes. What conclusion did the authors reach about clients who received research-based nursing care versus those who received routine nursing care?

A) No appreciable difference between the two groups
B) Made sizeable gains in behavioural knowledge and physiological and psychosocial outcomes
C) Increased their behavioural knowledge but did not make gains in physiological and psychosocial outcomes
D) Increased insignificantly in knowledge, attitudes, and behaviour related to healthy lifestyle choices