Journal article

The cognitive decline scale of the psychogeriatric assessment scales (PAS): longitudinal data on its validity

AF Jorm, H Christensen, PA Jacomb, AE Korten, AJ Mackinnon

INTERNATIONAL JOURNAL OF GERIATRIC PSYCHIATRY | JOHN WILEY & SONS LTD | Published : 2001

Abstract

OBJECTIVE: The Cognitive Decline scale of the Psychogeriatric Assessment Scales (PAS)1 uses informant data to assess retrospectively change from earlier in life. Data from a 7-8-year longitudinal study were used to assess the validity of this scale against changes in cognitive performance and mortality. DESIGN AND MEASURES: PAS data were collected on three occasions, with gaps of 3.6 and 4.1 years between the waves. The Cognitive Decline score at Wave 3 was validated retrospectively against actual change on a brief test of current cognitive status (the PAS Cognitive Impairment scale) over the three waves, while the Cognitive Decline score at Wave 1 was assessed for predictive validity agains..

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