Findings on the reliability and cost-effectiveness of the use of cellular phones vis-à-vis face-to-face interviews in investigating health behaviors and conditions are presented for a national epidemiological sample from Lebanon. Using self-reported responses on identical questions, percentage agreement, ? statistics, and McNemar's test were used…

The concepts, definitions, and notation that have evolved with the development of telephone survey design methodology are discussed and presented as a unified structure. This structure is then applied to some of the more well-known telephone survey designs and alternative designs are developed. The relative merits of the different survey designs…

This paper describes empirically tested strategies for containing mailed questionnaire costs while maximizing survey response rates. Survey focus, critical to gaining respondent interest and completion of the survey instrument, should be selected on the basis of the theme of the study in order to reduce survey length and yield more in-depth and…