Using R and SPSS, various forms of split-half and parallel reliabilities were calculated. Robust split-half and parallel reliability coefficients for the Purdue Pharmacist Directive Guidance Scale are presented with coefficients greater than .84.
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References
1.
AndersonJ. R.Marr-LyonL. R., & GupchupG. V. (2010) Psychometric properties of the Purdue Pharmacist Directive Guidance Scale (PPDG) in a sample of diabetes patients in the Southwestern United States. Psychological Reports, 107, 61–67.
