Discussion:
Confidence Intervals: A confidence interval is simply a finite interval of score values on the dependent variable. Such an interval is constructed by adding a specific amount to the computed statistic (thereby obtaining the upper limit of the interval) and by the subtracting a specific amount from the statistic (thereby obtaining the lower limit of the interval). In addition to specifying the interval's upper and lower limits, researchers will always attach a percent to any interval that is constructed. The percentage value selected by the researcher will invariably be a high number, such as 90% or 95% of 99%.
In this paper present the Construction of confidence Intervals and the Proper Interpretation of confidence Intervals and show appropriate examples in the education environment.