This chapter discusses the limitations of the study, how the findings compare with the Boston Couples Study, and the implications of the study for self-reflection, couples’ counseling, and well-being.

Since the study is online (except in Pakistan), participants are limited to those who have access to the internet and to those willing to answer an extensive online questionnaire. They are likely to be younger, since older persons may be less familiar with computers. And they are likely to be better educated than the general public. Issues in using the internet for research are discussed by Gosling et al. (2004), Van Selm and Jankowski (2006), and Fraley (2007). Additional sampling issues in relationship research are discussed by Hill et al. (1979), de Jong Gieveld (1995), and Karney et al. (1995).