Objective: The purpose of this study was to explore the ways in which social smoking expectations mediate the relationship between adolescent smoking behaviour and the smoking behaviour of family and peers. Design: Descriptive, cross-sectional survey. Setting: Taiwan, Republic of China. Method: The participants were 921 senior high school students…

Method effects associated with item wording have been explored in a variety of instruments and found that the practice of using positively- and negatively- worded items may introduce systematic measurement errors that disrupt analyses and interpretations of the results. Therefore, the first purpose in the present study was to explore if method…