Context: Collecting user feedback on locations they visit.
I wondered whether anybody has any experience or knows of research on the 'length of scale'.
The options are:
1 - 2 Point Scale ( Good / Bad )
2 - 3 Point Scale ( Good / Neutral / Bad - or 1 to 3 rating )
3 - 5 Point Scale ( 1 to 5 rating )
The issues relate to:
A - Completion Rate - ie whether they respond to the scale
B - Accuracy - whether how they respond is an accurate gauge of their feeling (ie do users avoid using the extreme ends of the longer 1-5 scale?)
I've found this existing question and response which is similar. However my interest is for the use within an app rather than the 'use in user research' scenario.