CSAT basics
How many happy answers do you need to reach your CSAT goal?
To reach a CSAT goal, your new answers must score above it. Divide the gap in happy answers by how far new answers beat the goal.
The GleeMeter blog
Plain guides to CSAT scores, survey questions and customer feedback, with real math you can check in the free GleeMeter calculator.
Survey tips
How many survey responses do you need for a reliable CSAT score?
For a CSAT score within 5 points, you need between 139 and 385 answers. The closer your score sits to 50%, the more answers you need.
CSAT basics
Is your CSAT change real or just noise?
A CSAT change counts as real when it is bigger than normal survey noise. Compare both periods with a two proportion test, and trust the change only when p is under 0.05.