Confidence Intervals for True Scores: Is There a Correct Approach?

Abstract

Five well-known confidence interval approach es were presented and scrutinized for the pur pose of determining which approach is cor rect. Two theoretical conceptualizations for confidence intervals were presented. The con clusion was reached that two of the approaches were correct and the others were conceptually unsound. The correct approaches are: (a) the standard error of measurement centered on the obtained score, and (b) the standard error of estimate centered on the estimated true score.