The British Journal of Psychiatry · 2007 · 165 citations · 11 references
The DSQIID is a valid, reliable and user-friendly observer-rated questionnaire for screening for dementia among adults with Down's syndrome.
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Marshal F. Folstein, Susan E. Folstein, Paul R. McHugh · Journal of Psychiatric Research · 1975 · 85.9K citations
Discovering statistics using SPSS for Windows.
Andy P. Field · 2000 · 2.7K citations