JASP Articles
Annotated Output | Confidence Interval for a Mean
Computer Output
The table of descriptive statistics provides the baseline information.
These values of the descriptive statistics are identical to the values that would be provided by the “Descriptives” procedure.
The table of inferential statistics shows the key elements to be interpreted.
The “t” and “p” provides a statistical significance test. It is important for the next topic, but not immediately relevant to the confidence interval.
Using the “CI”, the researcher estimates that the true population mean is likely between 1.394 and 6.606 (knowing that the estimate could be incorrect).
APA Style
Confidence intervals provide a range estimate for a population value (e.g., the mean). Note that the width of the interval can be altered to reflect the level of confidence in the estimate.
The participants (N = 8) scored low on the Outcome (M = 4.00, SD = 3.12), 95% CI [1.39, 6.61].