Calculating the scores of scales in questionnaires

Question

I am creating a new project with your platform, and I would like to calculate the results of 4 scales at the end of the survey if the participant clicks on the option: calculate the results of "x" scale.
So if the respondent clicks on the button the results will appear, and if he doesn´t the results won´t appear in a next page.
However, I am unable to find a way to do this. Could you please help me with this?

Answer 1

Okay, the results are the easy part. You just need to calculate them via valueMean() and then display them. For example:

replace('%resultA%', valueMean('SC01'));
replace('%resultB%', valueMean('SC02'));
replace('%resultC%', valueMean('SC03'));
replace('%resultD%', valueMean('SC04'));

html('
  <p>Result Scale A: %resultA%</p>
  <p>Result Scale B: %resultB%</p>
  <p>Result Scale C: %resultC%</p>
  <p>Result Scale D: %resultD%</p>
');

More about that see Individual Feedback for Participants.

Okay, now the other part: A custom button that changes the questionnaire's behavior. You'll need these things:

1. An additional page that will be skipped unless the button is used.
2. The buttonToPage() function to show an additonal button.
3. The setNextPage() function to skip the page by default.