The Development of the Dementia Screening Battery-100: Instrument Presentation, Reliability, and Construct Validity

Area of Science:

• Neuroscience
• Gerontology
• Psychometrics

Background:

• Existing dementia screening tools often rely on translated or adapted instruments for non-Western populations.
• There is a need for culturally appropriate dementia screening tests that align with current advancements in the field.

Purpose of the Study:

• To introduce the rationale and development of the Dementia Screening Battery-100 (DSB-100).
• To evaluate the DSB-100's validity and reliability for dementia screening.

Main Methods:

• The DSB-100 was administered to 46 individuals diagnosed with dementia (DSM-IV criteria) and 159 healthy controls.
• Participants were assessed for cognitive impairment, dementia severity, depression, and frontal dysfunction.

Main Results:

• Age and education significantly predicted cognitive performance, while sex did not.
• Construct validation identified four key factors: attention-visuospatial, memory, language, and executive functions.
• The DSB-100 demonstrated high interrater reliability and acceptable internal homogeneity.

Conclusions:

• The DSB-100 is validated for dementia screening in the Tunisian elderly population.
• The test may be applicable to elderly individuals from other cultural backgrounds with potential modifications to specific subscales.