Wechsler Intelligence Scale for Children®—Fourth Edition: Canadian
The Wechsler Intelligence Scale for Children—Fourth Edition: Canadian
(WISC®–IVCDN) draws on the latest research and diagnostic criteria to provide a notably
improved index score level of analysis. Based on four index scores that reflect different abilities
important to express intelligent behaviour in the classroom and beyond, it provides you with critical
insights into key indicators of cognitive strengths and weaknesses to assess learning disabilities,
executive functioning, attention disorders, traumatic brain injuries, mental retardation, giftedness,
or other medical and neurological concerns.
Stronger Clinical Utility
- Improved assessment of fluid reasoning, working memory, and processing speed
- Fewer core subtests—takes less time
- Decreased emphasis on time with fewer time bonuses
- Improved reliabilities and validities
- Improved floors and ceilings on all subtests
- Correlational studies (U.S. data only) were conducted between the WISC®–IV and other measures of
memory (CMS™), adaptive behaviour (ABAS®–II), emotional intelligence (BarOn Emotional-Quotient
Inventory: Youth Version™), and giftedness (GRS™)
- Chapter on interpretation
- Updated norms and items
The WISC®–IVCDN Model
The WISC®–IVCDN includes 10 core subtests and 5 supplemental subtests, as illustrated in
the chart below. This newest edition has improved floors and ceilings on all subtests.
The Wechsler Tradition: Reliability and Clinical Validity
The WISC®–IVCDN normative sample consisted of 1,100 children ages 6 to 16, with 100
children in each of the 11 age groups. The sample was stratified based on age, sex, parent education
level, geographic region, and race/ethnicity. For validity studies, WISC®–IVCDN data were
collected from 4 clinical groups in Canada and 16 clinical groups in the U.S. Equivalency studies were
also conducted within the Wechsler family of tests, enabling you to make meaningful and predictive
comparisons between various Wechsler scores. The WISC®–IVCDN manual reports results of
internal consistency, correlational data, and factor analysis.
WISC®–IVCDN Scoring Assistant®
Save time and effort by generating reports and interpreting results with the Scoring Assistant
software.You can score a case, maintain demographic information, store raw scores, and produce
comprehensive score reports. This software complements the WIAT®–IICDN and upcoming
WIAT®–IIICDN Scoring Assistants and features a table and graph report that provides
raw-to-scaled score conversions, strength and weakness discrepancies, index scores, and
ability-achievement discrepancies with the WIAT®–IICDN and WIAT®–IIICDN.
The WISC®–IVCDN Writer software programs include all of the features of the Scoring
Assistant, plus a comprehensive interpretive reporting function. The Writer interprets clinically
significant differences between scores and provides a Clinical and Background Review as well as a
WISC®–IVCDN Linked to WIAT®–IICDN and upcoming WIAT®–IIICDN for
Achievement–ability discrepancy calculations are now available based on Canadian data. The
WISC®–IVCDN Manual, Scoring Assistant, and Writer all provide for this important
comparison, which is often key to the diagnosis of learning disabilities in children. Please note: In
case of a software-created comparison, both the WISC®–IVCDN and
WIAT®–IICDN/WIAT®–IIICDN software have to be installed.
Obtain Valid Memory/Cognition Comparisons
A statistically valid and reliable discrepancy analysis (U.S. data only) is available for the
WISC®–IV and the Children's Memory Scale™ (CMS).
Tablet-based Administration for the WISC–IV
Stimulus books, record forms, and
administration instructions are in one
place, increasing portability.
On-the-fly scoring increases efficiency
of administration and reduces overall
For more information, please visit HelloQ.ca.