For the critique sessions, participants chose two smartphone
applications to examine from a set of four. All but one
group examined a prescription reminder application and an
app that claimed to help users live happier lives. The final
group chose to critique an application that helped track user
heart rates and the application that claimed to help users
live happier lives. Critique sessions lasted 20 minutes.
Three groups critiqued applications before designing their
own app, and 2 groups after.