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Full-Text Articles in Dermatology
Cutaneous Manifestations Of Internal Malignancy: A Case-Based Lesson, Timothy Beer
Cutaneous Manifestations Of Internal Malignancy: A Case-Based Lesson, Timothy Beer
Timothy C Beer
A case-based lesson covering 10 cutaneous manifestations associated with internal malignancies.
Evaluating Clinical Rating Scales For Evidence-Based Dermatology: Some Basic Concepts, Madhulika Gupta, Andrew Johnson, Mary-Margaret Chren
Evaluating Clinical Rating Scales For Evidence-Based Dermatology: Some Basic Concepts, Madhulika Gupta, Andrew Johnson, Mary-Margaret Chren
Andrew M. Johnson
Evidence-based dermatology has necessitated the development of rating scales that measure multidimensional and abstract constructs, such as quality of life. This article discusses some basic psychometric concepts, such as reliability, validity, standardization, and measurement precision, which need to be considered when choosing a clinical rating instrument. Also discussed is the impact of these parameters on increasing the statistical power of a clinical trial.