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Download full textKate E. Walton – ACT, Inc., 2024
There is a tradeoff between scale length and psychometric concerns. The two are, in fact, directly linked. Generally, when scales are shortened, reliability is reduced, and when scales are lengthened, reliability is improved, provided the items added to the scale are comparable psychometrically (AERA et al., 2014). Scale reliability, in turn,…
Descriptors: Psychometrics, Error of Measurement, Rating Scales, Reliability
