FACTORS AFFECTING THE VALIDITY OF STATED PREFERENCE

This study was designed to seek evidence for the validity of Stated Preference, but deliberately chose to look outside the field of transport, at: (1) Conjoint research in general market research. Opportunities for validating SP work in transport are limited and we expected there should be more scope in general market research where the range of applications and pool of experience is much broader; and (2) Experimental economics and psychology. Our interest here derived from the conviction that SP is concerned with understanding and modelling how people make decisions and choices, and SP practice will not improve without better understanding of these processes. It was found that there is little more hard evidence concerning the predictive validity of conjoint than there is for SP, but an extensive review of practice showed there are important ideas which could profitably be adapted from conjoint to improve SP practice, including: (a) internal validity checks; (b) simpler and more informative methods of analysis; and (c) a new goodness of fit test. For the covering abstract see IRRD E103853.

• Record URL:
  • http://abstracts.aetransport.org/conference/index/id/4
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0860503135
• Corporate Authors:

  PTRC Education and Research Services Limited

  Glenthorne House, Hammersmith Grove
  London W6OL9,   England 
• Authors:
  • SWANSON, J
• Conference:
  • TRANSPORTATION PLANNING METHODS. PROCEEDINGS OF SEMINAR D HELD AT AET EUROPEAN TRANSPORT CONFERENCE, LOUGHBOROUGH UNIVERSITY, UK, 14-18 SEPTEMBER 1998. VOLUME P423
• Publication Date: 1998-9

Language

• English

Media Info

• Features: References;
• Pagination: p. 1-16

Subject/Index Terms

• TRT Terms: Automobiles; Conferences; Decision making; Economics; Forecasting; Interviewing; Marketing; Mathematical analysis; Modal split; Psychology; Public transit; Research projects; Significance (Statistics); Statistics; Transportation
• ITRD Terms: 6471: Analysis (math); 1243: Car; 8525: Conference; 2248: Decision process; 255: Economics; 132: Forecast; 9147: Interview; 277: Marketing; 675: Modal split; 2255: Psychology; 744: Public transport; 8557: Research project; 6532: Significance (stat); 6555: Statistics; 1155: Transport
• Subject Areas: Data and Information Technology; Economics; Safety and Human Factors; Transportation (General);

Filing Info

• Accession Number: 00782824
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 0-86050-313-5
• Files: ITRD
• Created Date: Feb 7 2000 12:00AM