A reliability generalization (RG) study was conducted on the Coopersmith Self-Esteem Inventory (CSEI) to (a) examine the variability of reliability estimates across studies and (b) identify study characteristics that may predict this variability. Typical RG methodology was extended by estimating internal consistency reliability with KR-21 in cases when authors did not report reliability for their obtained scores. Accordingly, the present study investigated the psychometric properties of the CSEI and serves as a model to extend typical RG methods in some cases when examining dichotomously scored instruments.
A reliability generalization (RG) study was conducted on the Coopersmith Self-Esteem Inventory (CSEI) to (a) examine the variability of reliability estimates across studies and (b) identify study characteristics that may predict this variability. Typical RG methodology was extended by estimating internal consistency reliability with KR-21 in cases when authors did not report reliability for their obtained scores. Accordingly, the present study investigated the psychometric properties of the CSEI and serves as a model to extend typical RG methods in some cases when examining dichotomously scored instruments.It is well documented that score reliability can vary across administrations of a given measure (see Crocker
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