Factor structure and reliability of the brain impairment behavior scale.

Area of Science:

• Neuroscience
• Psychology
• Gerontology

Background:

• Stroke is a primary cause of adult disability, leading to physical and cognitive impairments.
• Cognitive deficits in stroke survivors significantly contribute to emotional distress in family caregivers.
• Existing cognitive assessments often treat cognition globally, potentially overlooking domain-specific impacts on caregivers.

Purpose of the Study:

• To identify distinct domains of cognitive changes manifesting as behavioral and psychological symptoms post-stroke.
• To assess the reliability and validity of the Brain Impairment Behavior Scale (BIBS) for measuring these cognitive domains.

Main Methods:

• Exploratory factor analysis was employed on data from 300 family caregivers of stroke survivors.
• The Brain Impairment Behavior Scale (BIBS) was administered to assess behavioral and psychological symptoms.
• Test-retest reliability was examined using a subsample with repeated BIBS assessments over two weeks.

Main Results:

• Four distinct cognitive domains were identified: apathy, depression/emotional distress, comprehension/memory problems, and irritability.
• Internal consistency for the BIBS subscales ranged from .78 to .91.
• Test-retest reliability, measured by intra-class correlation coefficients, ranged from .75 to .88 over two weeks.

Conclusions:

• The BIBS effectively measures specific cognitive domains affected by stroke.
• Understanding these distinct cognitive domains is crucial for addressing family caregiver well-being.
• Future clinical and research applications of the BIBS can enhance support for caregivers of stroke survivors.