For example, in a comprehensive evaluation of a workplace smoking policy, Gottlieb, Lovata, Weinstein, Gree, and Eriksen (1992) used quantitative methods, including administration of a survey, to collect social and demographic information about the employees and their overall opinions on policy development, implementation process, compliance, and policy impacts. Qualitative methods such as focus groups, individual interviews, and document review were used to gather information about whether the policy had affected social relationships between smokers and nonsmokers and how infractions had been managed.