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Cognitive pretesting, a qualitative step in scale development, precedes field testing and assesses the difficulty of instrument completion for examiners and respondents. Cognitive pretesting assesses respondent interest, attention span, discomfort, and comprehension, and highlights problems with the logical structure of questions/response options that can affect understanding. In the past this approach was not consistently used in the development or revision of movement disorders scales.

journal of parkinson's disease/journal of parkinson's disease (online)

Using Cognitive Pretesting in Scale Development for Parkinson's Disease: The Movement Disorder Society Unified Parkinson's Disease Rating Scale (MDS-UPDRS) Example