Test–retest reliability and convergent validity of the test of nonverbal intelligence-fourth edition in patients with schizophrenia

Autor: Kuan-Wei Chen, Ya-Chen Lee, Tzu-Ying Yu, Li-Jung Cheng, Chien-Yu Chao, Ching-Lin Hsieh
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: BMC Psychiatry, Vol 21, Iss 1, Pp 1-8 (2021)
Druh dokumentu: article
ISSN: 1471-244X
DOI: 10.1186/s12888-021-03041-4
Popis: Abstract Background Fluid intelligence deficits affect executive functioning and social behaviors in patients with schizophrenia. To help clinicians manage fluid intelligence deficits, a psychometrically sound measure is needed. The purposes of this study were to examine the test–retest reliability and convergent validity of the Test of Nonverbal Intelligence-Fourth Edition (TONI-4) assessing fluid intelligence in patients with schizophrenia. Methods A total of 103 patients with stable condition were assessed with the TONI-4 twice with a 4-week interval to examine the test–retest reliability. We further used the Montreal Cognitive Assessment (MoCA) and the Tablet-Based Symbol Digit Modalities Test (T-SDMT) to examine the convergent validity of the TONI-4. Results The intra-class correlation coefficient was 0.73 for the TONI-4. The percentages of standard error of measurement and minimal detectable change for the TONI-4 were 5.1 and 14.2%, respectively. The practice effect of the TONI-4 was small (Cohen’s d = − 0.03). Convergent validity showed small to moderate significant correlations between the TONI-4 and the MoCA as well as the T-SDMT (r = 0.35, p = .011 with the T-SDMT and r = 0.61, p
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