Nithsdale schizophrenia surveys 21: A longitudinal study of national adult reading test stability

G. Morrison*, V. Sharkey, J. Allardyce, R. C. Kelly, R. G. McCreadie

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

Background. The stability of the National Adult Reading Test (NART) as a measure of pre-morbid intelligence in schizophrenia has not yet been satisfactorily established despite the widespread use of the NART in schizophrenia research. Method. We examined NART stability in a diverse group of 45 schizophrenic patients in a prospective longitudinal study over 6.5-7.5 years. Results. The results showed that NART performance does not decline significantly with increasing duration of schizophrenic illness and that test-retest reliability, even over 6.5-7.5 years, is extremely high. Discussion. Our results provide the necessary evidence that the NART can be used as a stable measure of pre-morbid intelligence in schizophrenia.

Original languageEnglish
Pages (from-to)717-720
Number of pages4
JournalPsychological Medicine
Volume30
Issue number3
DOIs
Publication statusPublished - 31 May 2000

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