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14 June 2017 | NatCen - Head Office

Assessing the risk of mode effects in surveys

Series: Social science methods

SPEAKER: Joanna D'Ardenne Coffee and computer at work

Does it matter if we ask survey questions face-to-face, on the phone or online? Do the answers change and how? NatCen's Jo d'Ardenne and Annette Jäckle from the Institute for Social and Economic Research present results from a large national experiment.

This event is in the past.

Download the slides from the event here.

The costs of collecting survey data with telephone or face-to-face interviewers is ever increasing. As a result many surveys are facing increasing pressures to exploit opportunities presented by the web to administer questionnaires online. For many large-scale general population surveys switching to web-only data collection is however not an option, since web coverage is still quite selective. Instead many surveys are preparing to use web in addition to face-to-face or telephone interviewing.

This seminar looks at the implications of using a mix of face-to-face interviews and web questionnaires for measurement, whether data collected with these modes are comparable and which characteristics of survey questions predict measurement differences using data from a mixed mode experiment carried in the Innovation Panel of Understanding Society. The seminar will present a framework for predicting the risk of mode effects for individual survey questions and assess  which characteristics of a survey question predict whether answers differ between modes.

Speakers: Jo d’Ardenne (NatCen), Annette Jäckle (Institute for Social and Economic Research)


  • Date: Wednesday 14th June
  • Time: 12:30 - 14:00
  • Venue: NatCen Social Research, 35 Northampton Square, London EC1V 0AX

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