| Title |
Structural validity of the Spanish Wechsler Intelligence Scale for ChildrenFourth Edition in a large sample of Spanish children with attention-deficit hyperactivity disorder |
| Authors |
FENOLLAR CORTÉS, JAVIER, López-Pinar C. , Watkins M.W. |
| External publication |
No |
| Means |
Int. J. Sch. Educ. Psychol. |
| Scope |
Article |
| Nature |
Científica |
| SJR Quartile |
3 |
| SJR Impact |
0.34000 |
| Web |
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85053413379&doi=10.1080%2f21683603.2018.1474820&partnerID=40&md5=92e75b1734a9f000fac3d330319e74e5 |
| Publication date |
01/01/2019 |
| Scopus Id |
2-s2.0-85053413379 |
| DOI |
10.1080/21683603.2018.1474820 |
| Abstract |
The factorial structure of the WISC-IV for 859 Spanish children diagnosed with ADHD was examined. A bifactor model with the four factors first identified by Wechsler (2003a) was the best fit to the data. The Coding and Symbol Search subtests were particularly poor measures of g but relatively strong measures of the Processing Speed factor. In contrast, the Block Design (BD) and Picture Concepts (PC) subtests were relatively strong measures of g but weak measures of the Perceptual Reasoning factor. In fact, 80% of the BD variance and 97.8% of the PC variance and was due to the general factor. Additionally, the Wechsler bifactor model was invariant across ADHD-Combined and ADHD-Inattentive groups, permitting a direct comparison of WISC-IV across children diagnosed with these subtypes of ADHD. Only the FSIQ exhibited robust estimates of reliability (? = .85 and ?h = .70). In contrast, the group factor scores were unreliable measures of their proposed underlying factors (?hs coefficients ranging from.14 to.50). It is unlikely that WISC-IV index score profiles can validly contribute to ADHD assessments. Consequently, clinicians must produce psychometric evidence to justify the interpretation of Wechsler score profiles for children with ADHD. © 2018, © 2018 International School Psychology Association. |
| Keywords |
ADHD; bifactor; CFA; intelligence; invariance; validity; WISC-IV |
| Universidad Loyola members |
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