A formula for the standard error of estimate of Deviation Quotients on short forms of wechsler's scales
Arthur B. Silverstein · Journal of Clinical Psychology · 1985
Linear scaling, which yields Deviation Quotients (DQs), has been proposed as an alternative to linear regression, which yields estimates of Full Scale IQs. A problem with linear scaling is that standard errors of estimate cannot be calculated in the customary way. A formula is presented for the standard error of estimate of DQs, and the formula is shown to perform well when used with data on short forms of two of Wechsler's scales.