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.
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 schizophrenicpatients 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.
Authors: James P Olsen; Robert P Fellows; Monica Rivera-Mindt; Susan Morgello; Desiree A Byrd Journal: Clin Neuropsychol Date: 2015-12-21 Impact factor: 3.535
Authors: Margo W Menkes; Kristan Armstrong; Jennifer Urbano Blackford; Stephan Heckers; Neil D Woodward Journal: Schizophr Res Date: 2018-10-26 Impact factor: 4.939
Authors: Verity C Leeson; Pranev Sharma; Masuma Harrison; Maria A Ron; Thomas R E Barnes; Eileen M Joyce Journal: Schizophr Bull Date: 2009-11-24 Impact factor: 9.306
Authors: V A Morgan; J J McGrath; A Jablensky; J C Badcock; A Waterreus; R Bush; V Carr; D Castle; M Cohen; C Galletly; C Harvey; B Hocking; P McGorry; A L Neil; S Saw; S Shah; H J Stain; A Mackinnon Journal: Psychol Med Date: 2013-12-23 Impact factor: 7.723