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[Sandoz Clinical Assessment Geriatric Scale: a transcultural factor-analytic study]
Zeitschrift Fur Gerontologie
|January 1, 1982
Summary
The Short Cognitive Affective Geriatric scale (SCAG) shows similar construct validity across English, German, and French versions. This supports its use in diverse European clinical trials for assessing aging patients.
Area of Science:
- Geriatric Medicine
- Psychometrics
- Clinical Psychology
Context:
- Limited validated scales exist for assessing mental deterioration in aging patients.
- The Short Cognitive Affective Geriatric scale (SCAG) is used to evaluate cognitive, affective, social, and somatic functions and drug effects in geriatric patients.
- SCAG translations (German, French) are used in European clinical trials, raising questions about cross-cultural validity.
Purpose:
- To comparatively study the construct validity of English, German, and French versions of the SCAG.
- To assess if the psychometric properties of SCAG are consistent across different European cultural backgrounds.
- To validate SCAG's factor structure using factor analyses on samples from various European countries.
Summary:
- A comparative study analyzed the construct validity of SCAG versions using 5 European samples.
- Factor analyses were performed, referencing a large American dataset (1165 pre-treatment values from 21 trials).
- Essentially the same five-factor structure emerged across most European samples, indicating consistent construct validity.
Impact:
- The findings support the cross-cultural validity of the SCAG in European clinical settings.
- This reinforces the SCAG's utility as a reliable instrument for assessing aging patients in diverse populations.
- The study validates the use of translated SCAG versions in international geriatric drug trials.