| Procedures for Initial Group (First 38 Participants) | Procedures for Verification Group (Final 18 Participants) |
|---|---|
| Demographic data collected | Same |
| S-TOFHLA numeracy test | Same |
| Questions about current health-related activities and sources and sufficiency of information | Same |
| Questions about risk perception: What are you most worried about in coming X years and why? | Same |
| Rank health risks using card sort (were not asked to rank mortality if estimated risk is high) | Same |
| (1) Reviewed personalized risk information, randomly presenting either bar chart or crowd charts; mortality risk censored if too high | (1) Presented bar charts first; if did not clearly understand, presented crowd charts as well |
| (2) Asked for reactions to risk projections: comprehension, personal relevance, preferred format | (2) Asked to rank second set of risk cards as UKPDS model predicted them |
| (3) Presented with and reviewed other set of risk representations (crowd or bar charts) | (3) If could not properly rank risk cards, presented crowd charts if not already done, reviewed data, encouraged to try again |
| Given second set of cards and asked to rank based on current feelings about risk with original ranking and risk charts in view | If able to rank second set of cards correctly, given third set of cards to rank based on current feelings, with first 2 card sets and risk charts in view |
| Asked about reasons for changing/not changing rankings, why they did or did not believe or match computer estimates, whether they are motivating for change, and suggestions for improvement | Same |
S-TOFHLA, Short Test of Functional Literacy in Adults; UKPDS, UK Prospective Diabetes Study.