Computer-aided Personal Interviews Research Articles

An experimental investigation of post-earthquake travel behaviours: the effects of severity and initial location

A computer-aided personal interviewing survey containing 63 items examining post-earthquake travel behaviours was administered to 802 members of the general public. Earthquake simulation videos modelled a moderate and severe event (6.8 and 7.5, respectively, on the Richter scale) in an office and home setting. Travel movements were recorded over a simulated 48-h period following the earthquake. Geographic Information System (GIS) software was used to obtain trip origins and destinations the routes taken and trip distances. Information seeking was also examined. The results indicate that an event which induces significant travel produces trips that are for a variety of purposes, not just to return home. While individually rational, this behaviour is a form of collective social disorder. Mode choice varied with event severity and distance (walking was preferred up to 3.25 km, then vehicles were preferred). Well-prepared emergency plans reduce the need to travel. The motivation to travel was affected by available information and is discussed as a form of information seeking.

From Papi to Capi

This article describes the conversion of the British Household Panel Survey (BHPS) to a computer aided personal interviewing (CAPI) mode of data collection. The BHPS is a panel survey, now in its 10th year of data collection, carried out by the Institute for Social and Economic Research based at the University of Essex. Moving to CAPI midway in the life of a panel survey presents particular challenges, and the article discusses the implications of the move and details the staged strategy by which it was accomplished within a very tight timescale. The authors show how this approach has provided many of the benefits of a CAPI mode of data collection while posing little risk to the integrity of the panel sample as a whole, generating, nevertheless, challenges of its own.

Computer-aided personal interviewing. A new technique for data collection in epidemiologic surveys.

Most epidemiologic studies involve the collection of data directly from selected respondents. Traditionally, interviewers are provided with the interview in booklet form on paper and answers are recorded therein. On receipt at the study office, the interview results are coded, transcribed, and keypunched for analysis. The author's team has developed a method of personal interviewing which uses a structured interview stored on a lap-sized computer. Responses are entered into the computer and are subject to immediate error-checking and correction. All skip-patterns are automatic. Data entry to the final data-base involves no manual data transcription. A pilot evaluation with a preliminary version of the system using tape-recorded interviews in a test/re-test methodology revealed a slightly higher error rate, probably related to weaknesses in the pilot system and the training process. Computer interviews tended to be longer but other features of the interview process were not affected by computer. The author's team has now completed 2,505 interviews using this system in a community-based blood pressure survey. It has been well accepted by both interviewers and respondents. Failure to complete an interview on the computer was uncommon (5 per cent) and well-handled by paper back-up questionnaires. The results show that computer-aided personal interviewing in the home is feasible but that further evaluation is needed to establish the impact of this methodology on overall data quality.