Table 2.

Evaluation criteria and scoring for each goal-setting component.

Component	Evaluation criteria	Answer (score)
Specificity	Is the goal set in specific and measurable behavioural terms?	No (0)Yes (+1)
Difficulty	Is the goal set considering the users’ skill or expertise level?	No (0) Yes (+1)
Timing	Is the goal set by specifying the timeframe? If yes, which is the timeframe?	No (0) Yes a. daily (+1)  b. weekly or more (+.5)  c. both (+1.5)
Action planning	Does the app prompt the users to develop or facilitates the development of action plans as a strategy to achieve goals?	No (0) Yes (+1)
Goal evaluation	Does the app provide evaluative feedback about the users’ progress towards the goal?	No (0) Yes (+1)
Goal re-evaluation	Does the app adjust and redefine goals on the basis of users’ achievements and failures?	No (0) Yes (+1)