Clinical Interpretation of the WISC-IV FSIQ and GAI

Saklofske, Donald H.; Prifitera, Aurelio; Weiss, Lawrence G.; Rolfhus, Eric; Zhu, Jianjun

doi:10.1016/b978-012564931-5/50003-7

Cited by 39 publications

(35 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The General Ability Index is derived from VCI and PRI without including WMI and PSI, which are likely to be low in children with neurological disorders, such as high-functioning autism. For children with neurocognitive deficits, the General Ability Index may be a more valid measure of intelligence than FSIQ (Fiorello et al, 2002;Saklofske, Prifitera, Weiss, Rolfhus, & Zhu, 2005;Weiss, Saklofske, Prifitera, Chen, & Hildebrand, 1999).…”

Section: Introductionmentioning

confidence: 99%

WISC-IV and WIAT-II Profiles in Children With High-Functioning Autism

Mayes

Calhoun

2007

J Autism Dev Disord

245

192

View full text Add to dashboard Cite

Children with high-functioning autism earned above normal scores on the Wechsler Intelligence Scale for Children-Fourth Edition (WISC-IV) Perceptual Reasoning and Verbal Comprehension Indexes and below normal scores on the Working Memory and Processing Speed Indexes and Wechsler Individual Achievement Test-Second Edition (WIAT-II) Written Expression. Full Scale IQ (FSIQ) and reading and math scores were similar to the norm. Profiles were consistent with previous WISC-III research, except that the new WISC-IV motor-free visual reasoning subtests (Matrix Reasoning and Picture Concepts) were the highest of the nonverbal subtests. The WISC-IV may be an improvement over the WISC-III for children with high-functioning autism because it captures their visual reasoning strength, while identifying their attention, graphomotor, and processing speed weaknesses. FSIQ was the best single predictor of academic achievement.

show abstract

Section: Introductionmentioning

confidence: 99%

WISC-IV and WIAT-II Profiles in Children With High-Functioning Autism

Mayes

Calhoun

2007

J Autism Dev Disord

245

192

View full text Add to dashboard Cite

show abstract

“…Thus, a measure of GI can be obtained without using the WMI subtests (Saklofske, Prifitera, Weiss, Rolfhus, & Zhu, 2005), referring to six subtests with high loadings on g factor and only related to two different general intelligence indexes (i.e., VCI and PRI).…”

Section: Introductionmentioning

confidence: 99%

Intelligence and working memory control: Evidence from the WISC-IV administration to Italian children

Cornoldi

Orsini

Cianci

et al. 2013

Learning and Individual Differences

View full text Add to dashboard Cite

Working memory (WM) has been associated with general intelligence (GI). However, evidence is contradictory, as the relationship has in some cases resulted to be very high, and in other cases very low. To explain these differences, it has been argued that WM is an articulated system and only its more attentional components are strictly related with GI. In particular, it has been argued that WM tasks can be located -according to the task characteristics and the subject's age -along a continuum, from the most passive tasks, which do not require cognitive control, to the most active tasks, which do require high cognitive control. The present study tested this hypothesis using data collected during the standardization of the Italian version of the WISC-IV. WISC-IV, includes four measures, i.e. the arithmetic test, the letter-number sequencing test, the backward and the forward digit span tests, which represent decreasing levels of cognitive control. The analysis of correlations between the four tasks and a measure of GI -obtained with the six basic tasks (related to verbal comprehension and perceptual reasoning, but not to working memory) -confirmed the hypothesis and showed that the pattern of correlations only slightly changes across ages.

show abstract

“…However, a detailed discussion of the GAI is beyond the scope of this article. The reader who wishes to learn more about the GAI is referred to Prifitera, Weiss, and Saklofske (1998) and Saklofske et al (2005). The administration times reported above do not include the associated tasks of scoring and interpreting the scale.…”

Section: Discussionmentioning

confidence: 99%

“…All protocols were checked by at least two examiners to insure scoring accuracy. In addition to obtaining administration time estimates for the WISC-IV subtests and composites, time requirements of eight short forms and the General Ability Index (GAI; Saklofske, Rolfhus, Prifitera, Zhu, & Weiss, 2005) were also calculated. The two-subtest and three-subtest combinations were selected because they have excellent validity coefficients (Sattler & Dumont, 2004).…”

Section: Methodsmentioning

confidence: 99%

Administration time estimates for Wechsler Intelligence Scale for Children‐IV subtests, composites, and short forms

2007

View full text Add to dashboard Cite

The administration times for Wechsler Intelligence Scale for Children-IV (WISC-IV) subtests, indexes, and the Full Scale IQ were recorded for 57 school children. Also determined were administration times for eight short forms and the General Ability Index (GAI). All eight short forms reduced testing time by >50%, but the GAI required approximately 56 minutes. The time to administer the 10 core subtests that yield the Full Scale IQ and index scores averaged 72 minutes (range = 42 to 100), but 31% of the administrations required 80 minutes or longer. These results indicate that administration times are quite variable and that D. Wechsler's (2003) guideline of 65 to 80 minutes can be misleading for certain settings and for specific examinees. The present research found administration time to be positively correlated with examinee age, grade placement, and Full Scale IQ. In addition, the extent of examiner experience is known to be positively related to administration speed. In the present research, as in many settings, the examiners were competent, but not highly experienced.

show abstract

Clinical Interpretation of the WISC-IV FSIQ and GAI

Cited by 39 publications

References 28 publications

WISC-IV and WIAT-II Profiles in Children With High-Functioning Autism

WISC-IV and WIAT-II Profiles in Children With High-Functioning Autism

Intelligence and working memory control: Evidence from the WISC-IV administration to Italian children

Administration time estimates for Wechsler Intelligence Scale for Children‐IV subtests, composites, and short forms

Contact Info

Product

Resources

About