Motivation for traumatic brain injury rehabilitation questionnaire (MOT-Q): reliability, factor analysis, and relationship to MMPI-2 variables.

A Likert scale questionnaire was developed to assess motivation for postacute rehabilitation by traumatic brain injury patients. Items were designed to reflect head-injured individuals' statements about their attitudes toward head injury rehabilitation. Factors such as denial of illness, anger, compliance with treatment, and medical information seeking behavior were used to assess unfavorable and favorable components of motivation. Reliability was assessed using Cronbach's Alpha, which was found to be 0.91 for the total scale. Four factor analysis derived subscales were identified: Lack of Denial, Interest in Rehabilitation, Lack of Anger, and Reliance on Professional Help. Correlation and multiple regression analyses demonstrated moderate relationships between MOT-Q and several MMPI-2 variables largely related to indicators of somatic distress, depression and capacity for self-sufficiency. Lack of Denial subscale showed the strongest relationship to MMPI-2 of all MOT-Q variables, while Interest in Rehabilitation showed the best correlation to the MOT-Q total.

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