Power: how to use it in evidence-based practice.
Engberg
Sandra
S
University of Pittsburgh School of Nursing, Pittsburgh, Pennsylvania 15261, USA. sje1@pitt.edu
Schlenk
Elizabeth A
EA
D003627:Data Interpretation, Statistical; D019317:Evidence-Based Medicine / Q000458:organization & administration*; D006801:Humans; D015203:Reproducibility of Results; D012107:Research Design