An assessment of the potential utility of interviewer observation variables for reducing non‐response error in the National Survey for Wales: a report prepared for the Welsh Government by Patrick Sturgis and Ian Brunton-Smith
The impact of alternative mixed-mode strategies on non-response in a complex household survey: constraints and experiments
The effect of interviewer personality, skills and attitudes on respondent co-operation with face-to-face surveys
Using experiments to guide decision making in Understanding Society: introducing the Innovation Panel