Confidence interval
A range produced by a repeated-sampling procedure that quantifies uncertainty around an estimated parameter.
How to interpret it
Interpret the interval through the method and assumptions used to construct it, not as the probability that a fixed parameter lies inside one observed interval.
Related practical guides
- How to Report p Values, Confidence Intervals, and Effect Sizes in APA 7
- Eta Squared vs Partial Eta Squared: Which Effect Size Should You Report?
- Confidence Intervals for Proportions: Wald, Wilson, and Exact Methods