Here is the WPPSI3 (2002) structure for ages 4:0-7:3
Processing
speed
|
performance
|
verbal
|
General
verbal ability
|
Symbol search
|
Block design
|
Information
|
Receptive vocabulary
|
coding
|
Matrix reasoning
|
Vocabulary
|
Picture naming
|
Picture concepts
|
Word reasoning
|
||
Picture completion
|
Comprehension
|
||
Object assembly
|
Similarities
|
And here is the CHC classification of the WPPSI3 test. This is taken from:
Alfonso, V. C., Flanagan, D.P. and Radwan, S. The impact of the Cattell Horn Carroll Theory
on test development and interpretation of cognitive and academic
abilities. In: Flanagan, Dawn P and
Harrison, Patti L. Contemporary
Intellectual Assessment. Second edition, 2005.
The Guilford Press.
Crystallized
knowledge
|
Fluid
ability
|
Visual
processing
|
Processing speed
|
Vocabulary
|
Matrix
reasoning
|
Block
design
|
Symbol search
|
Information
|
Picture concepts
|
Object assembly
|
coding
|
Similarities
|
Picture completion
|
||
Comprehension
|
|||
Receptive
vocabulary
|
|||
Picture
naming
|
|||
Word
reasoning
|
Here is the WPPSI4 (2012) test structure. This information is taken the PEARSON site
at:
Working
memory
|
Verbal
comprehension
|
Fluid
ability
|
Visual
spatial
|
Processing speed
|
Picture
memory –
The
child views a stimulus page of one or more
pictures
for a specified time and then selects the
pictures
from options on a response page.
|
Information
|
Matrix
reasoning
|
Block
design
|
Bug
search
(like
symbol search)
|
Zoo
locations – The child views one or more animal cards
placed
on a zoo layout for a specified time
and
then places each card in the previously
viewed
locations
|
Similarities
|
Picture concepts
|
Object assembly
|
cancellation
|
Vocabulary
|
Animal
coding
(like
coding)
|
|||
Comprehension
|
||||
Receptive
vocabulary
|
||||
Picture naming
|
We can see that the WPPSI4 structure is in line with the CHC
classifications of the WPPSI3 test. This increases
the legitimacy of interpreting the WPPSI3 within CHC framework.