What I learned this past week.
Agreement scales are subject to acquiescence bias. This means that people are prone to agree with statements.
One best practice is to use a 7 point scale with bipolar response choices and 5 point scales with unipolar scales.
What is the difference between unipolar and bipolar scales. Here is a great link from survey monkey: Difference between Unipolar and Bipolar Scales
Additional resources regarding 5 and 7 point scales. Scales