Factors Associated with Participation in the Collection of Saliva Samples by Mail in a Survey of Older Adults
Straightlining: Overview of Measurement, Comparison of Indicators, and Effects in Mail-Web Mixed-Mode Surveys.
Toward a Social Psychological Programme for Improving Focus Group Methods of Developing Questionnaires
The Effect of Interviewer and Respondent Behavior on Data Quality: Analysis of Interaction Coding in a Validation Study