Fig 1.
Example of a conjoint question (PC and smartphone views).
Fig 2.
Mean utilities per attribute level and 95% credibility intervals (shadowed bands).
Note: Blue subplots = common attributes for both geolocation-based activities; red subplots = specific in-the-moment surveys’ attributes. Grey subplots = rest of the attributes needed to model participants’ choices.
Table 1.
Willingness to participate in in-the-moment surveys (0–6 point scales) in five specific situations.
Table 2.
Importance of attributes.
Table 3.
Expected willingness to participate.
Table 4.
Willingness to participate per group of panelists.
Table 5.
Main reasons to participate or not in geolocation-based research activities.