Paper-and-pencil versus personal digital assistant enabled surveys : a comparison

T. Bellemans, B. Kochan, D. Janssens, G. Wets, H.J.P. Timmermans

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic


A customized tool, PARROTS (PDA system for Activity Registration and Recording of Travel Scheduling) was developed to collect both activity data and GPS-data. This tool is currently deployed in a survey that is carried out on 2500 households in Flanders (Belgium). This paper reports some results of a study on the impact of this tool on data quality. To that effect, a paper-and-pencil diary was designed as well. To judge the effect on data quality, various analyses were performed on both the paper-and-pencil and PDA data. The paper discusses the findings on the effects of a computer-assisted data collection tool featuring default answers, pre-defined drop-down lists and many other graphical design elements on data quality.
Original languageEnglish
Title of host publicationTransportation Systems: Engineering & Management. Proceedings of the 12th international Conference of Hong Kong Society for Transportation Studies
EditorsC.H. Cheng, S.H. Ho, J.M.Y. Leung
Place of PublicationHong Kong
ISBN (Print)978-988-98847-2-7
Publication statusPublished - 2008
Eventconference; 12th HKSTS International Conference Hong Kong -
Duration: 1 Jan 2008 → …


Conferenceconference; 12th HKSTS International Conference Hong Kong
Period1/01/08 → …
Other12th HKSTS International Conference Hong Kong


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