Table 3.

Summary of qualitative pretest results of the Web-based intervention.

General findings	Adaptations
The website address is often typed in into the Google search window instead of the website address window.	The website was made findable in the Google search results, and an information form was developed on how to enter the website.
Average duration of filling in the online questionnaire was 50 minutes. The participants did not mention this as a constraint.	No adaptations were made to the length of the questionnaire.
People perceived difficulties in how to fill in certain questions.	An information form was developed on how to fill in this questionnaire. This information was also added to the help section of the website.
People appreciated the large letter type.	The letter type size was not changed.
All people were able to use the scrolling methods, but scrolling both up and down, and to the left and to the right is too difficult.	Layout of the webpage was adapted to prevent too much scrolling.
By clicking on other website links, participants lost track of their own tailored advice.	Website links mentioned in the advice opened in a new window, to prevent participants from loosing track of their personal advice.
Some technical errors and errors in tailoring algorithms were found.	All errors were adjusted.