Item Reduction and Psychometric Validation of the Oily Skin Self Assessment Scale (OSSAS) and the Oily Skin Impact Scale (OSIS)

Catherine Copley-Merriman; Marci Jeanette Clark; R Arbuckle; Marci Jeanette Clark; J Harness; N Bonner; J Scott; Z Draelos; R Rizer; Y Yeh; Kati Copley-Merriman

Item Reduction and Psychometric Validation of the Oily Skin Self Assessment Scale (OSSAS) and the Oily Skin Impact Scale (OSIS)

Arbuckle, R., Clark, M., Harness, J., Bonner, N., Scott, J., Draelos, Z., Rizer, R., Yeh, Y., & Copley-Merriman, C. (2009). Item Reduction and Psychometric Validation of the Oily Skin Self Assessment Scale (OSSAS) and the Oily Skin Impact Scale (OSIS). Value in Health, 12(5), 828-837.

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