Read the article by Labrague, L. & McEnroe-Petitte, D. (2016). Influence of music on preoperative anxiety and physiological parameters in women undergoing gynecologic surgery. Clinical Nursing Research, 25(2), 157-173. Discussing the strengths and weaknesses of the sampling method used in this study and if the sampling method promoted reliable and valid results. Include in the discussion if there is anything the researcher could have done to improve the sampling process.