Comparing responses from web and paper-based collection modes in a choice modelling experiment

Different choice modelling experiments have been conducted to test if the collection mode affects sample characteristics and value estimates. The modes tested were paper-based (using drop-off/pick-up) and web-based (using an internet panel). The valuation exercise was to elicit values from Brisbane respondents for future improvement in the environmental condition of the Great Barrier Reef. The total per survey cost of the paper-based survey was approximately $70 per survey and took three months to complete. In contrast, the online survey cost approximately $15 per survey and was completed in two weeks. The results indicate that while there were no differences in gender, education and income levels between the two groups there was an age difference with more young people and less older people in the internet group. A comparison of the WTP of respondents and other model and behavioural indicators do not indicate major differences in models by collection mode.