overview gail c. rodin, ph.d. assessment consultant pearson clinical assessment/psychcorp
TRANSCRIPT
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OverviewOverview
Gail C. Rodin, Ph.D.Gail C. Rodin, Ph.D.Assessment ConsultantAssessment Consultant
Pearson Clinical Pearson Clinical Assessment/PsychCorpAssessment/PsychCorp
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ObjectivesObjectives
• discuss the fundamental changes from the WPPSI-III to the WPPSI-IV;
• describe how the changes impact assessment of young children and interpretation of results; and
• interpret assessment results to make decisions regarding eligibility and intervention.
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WPPSI: A Historical WPPSI: A Historical PerspectivePerspective
WPPSI WPPSI 19671967
WPPSI-RWPPSI-R 19891989
WPPSI-III WPPSI-III 20032003
WPPSI-IV WPPSI-IV 20122012
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Structure®
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WPPSI-III WPPSI-III (2003)(2003)• Two batteries:
– Ages 2:6−3:11
– Ages 4:0−7:3
• Composite scores:
– Full Scale IQ (FSIQ)
– Verbal IQ (VIQ)
– Performance IQ (PIQ)
– Processing Speed Quotient (PSQ)
– General Language Composite (GLC)
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WPPSI-III to WPPSI-IVWPPSI-III to WPPSI-IVRevision GoalsRevision Goals
• Update theoretical foundations
• Increase developmental appropriateness
• Increase user friendliness
• Improve psychometric properties
• Enhance clinical utility
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WPPSI-IV WPPSI-IV (2012)(2012)
Core SubtestsCore Subtests
Supplemental Supplemental SubtestsSubtests
Optional SubtestsOptional Subtests
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Subtest Changes from WPPSI-Subtest Changes from WPPSI-IIIIII
• Dropped Word Reasoning & Picture Completion
• Revised retained subtests
– New items include picture items on Similarities and Comprehension, and a new puzzle for Object Assembly
• Replaced Processing Speed subtests
– Bug Search & Animal Coding
– Added Cancellation
• New Working Memory subtests
– Picture Memory
– Zoo Locations
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WPPSI-IV KitWPPSI-IV Kit
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Subtest AdministrationSubtest Administration
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Getting StartedGetting Started
• “We’ll be doing a lot of things today, like looking at pictures, answering questions, and playing with blocks.
• Some things may be easy and some may be hard.
• Just try your best.”
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Subtest Substitution*Subtest Substitution*Age Band
Composite Score
Core Subtest Allowable Substitution
2:6-3:11
FSIQ
Receptive VocabularyInformationBlock DesignObject AssemblyPicture Memory
Picture Naming———
Zoo Locations
NVI
Block DesignObject AssemblyPicture MemoryZoo Locations
————
GAI
Receptive VocabularyInformationBlock DesignObject Assembly
Picture Naming———
*Substitution may introduce additional measurement error. Therefore, only one substitution is allowed for each listed composite score.
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Subtest Substitution*Subtest Substitution*Age Band
Composite Score
Core Subtest Allowable Substitution
4:0-7:7
FSIQ
Information
Similarities
Block Design
Matrix
Reasoning
Picture Memory
Bug Search
Vocabulary or
Comprehension
Vocabulary or
Comprehension
Object Assembly
Picture Concepts
Zoo Locations
Cancellation or Animal
Coding
NVI
Block Design
Matrix
Reasoning
Picture
Concepts
Picture Memory
Bug Search
Object Assembly
—
—
Zoo Locations
Cancellation or Animal
Coding
*Substitution may introduce additional measurement error. Therefore, only one substitution is allowed for each listed composite score.
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Subtest Substitution*Subtest Substitution*Age Band
Composite Score
Core Subtest Allowable Substitution
4:0-7:7
GAI
Information
Similarities
Block Design
Matrix
Reasoning
Vocabulary or
Comprehension
Vocabulary or
Comprehension
Object Assembly
Picture Concepts
CPI
Picture
Memory
Zoo Locations
Bug Search
Cancellation
—
—
Animal Coding
Animal Coding*Substitution may introduce additional measurement error. Therefore, only one substitution is allowed for each listed composite score.
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Subtest AdministrationSubtest AdministrationGeneral DirectionsGeneral Directions
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Start, Reverse, DiscontinueStart, Reverse, Discontinue
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First Step to the Correct Start First Step to the Correct Start Point = Calculation of Point = Calculation of
Chronological AgeChronological Age
19
2012
13
24
06 07
08
11012006
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“Must I always start at the
age-appropriate start
point?”
Start PointStart Point
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For ages 4:0–7:7, reverse rules are included to help you determine when to administer items prior to a start point (i.e., reversal items) when the child does not begin with Item 1 and does not obtain a perfect score on either of the first two items given.
*Note exception for Picture Memory and Similarities*
Reverse RulesReverse Rules
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Discontinue Rules: Discontinue Rules: Younger BatteryYounger Battery
Subtest Consecutive Scores of 0:
WPPSI-III
Consecutive Scores of 0:
WPPSI-IV
RV 5 3
BD 3 2
IN 5 3
OA 3 2
PN 5 3
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Discontinue Rules: Discontinue Rules: Older Battery Older Battery
23
SubtestConsecutive
Scores of 0: WPPSI-III
Consecutive Scores of 0:
WPPSI-IV
BD 3 2
IN 5 3
MR 4 or 4 of 5 3
VC 5 3
PC 4 3
OA 3 2
CO 5 3
SI 4 3
PN 5 3
RV 5 3
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General Testing GuidanceGeneral Testing Guidance
• Timing on the WPPSI-IV
• Five subtests have strict time limits
• 30 second guideline for subtests without time-limits
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General Testing GuidanceGeneral Testing Guidance
• Teaching items
• Demonstration items
• Sample Items
25
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Subtest AdministrationSubtest AdministrationQueries, Prompts, Queries, Prompts,
RepetitionsRepetitions
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Queries are used
to elicit additional
information when
a child’s response
is marginal,
vague, incomplete,
unclear,
generalized.e.g., Explain what you mean. Tell me more.
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QueriesQueries
How often How often
should I query?should I query?
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Prompts . . . Prompts . . . Used to teach or remind child of Used to teach or remind child of
task.task.For example: children who mark more than one shape for an item on the Animal Coding subtest are reminded to mark only one shape for each animal.
Instructions for prompting are included in the General Directions section of relevant
subtests in Chapters 3 and 4 and are typically noted with a P on the Record Form.
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RepetitionsRepetitions
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For subtests that do not have strict time limits for child to respond, instructions may be repeated
as often as requested by the child. (i.e., Comprehension, Information, Picture Naming, Receptive Vocabulary, Similarities, Vocabulary, Matrix Reasoning, Picture
Concepts, *Picture Memory, and *Zoo Locations)
*Note Stopwatch required for PM and ZL to accurately time stimulus exposure.*
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RepetitionsRepetitions
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It is generally good practice to repeat the instructions if the child has not responded
within 5–10 seconds. However, instructions should not be repeated if it is clear that the child is considering his or her
response.
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RepetitionsRepetitionsFor subtests that require strict timing of the child’s response with a stopwatch, instructions may be repeated as often as necessary, but the time to repeat the instructions or to provide necessary prompts is included in the completion time.
(Animal Coding, Block Design, Bug Search,
Cancellation, and Object Assembly)
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Recording ResponsesRecording Responses
Abbreviation
Use
Q Administered Query
P Administered Prompt
R Repeated Item
DKChild indicated that s/he did not know the answer
NR Child did not respond
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SubtestsSubtests
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Verbal SubtestsVerbal Subtests
SubtestSubtest Ages Ages 2:6-3:112:6-3:11
Ages Ages 4:0-7:74:0-7:7
Information C C Receptive Vocabulary
C O
Picture Naming S O Similarities C Vocabulary S Comprehension S
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Information (IN)Information (IN)• Core Verbal Comprehension subtest
for ages 2:6–7:7. • Consists of 29 items: 4 picture items
and 25 verbal items. • All 4 picture items are retained, and
12 verbal items are retained with little or no change in wording. There are 13 new verbal items.
• Scoring criteria for all retained verbal items were revised.
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IN: DescriptionIN: Description
Picture Items Verbal Items
The child selects the pictures that best answer questions about general-knowledge topics.
The child verbally answers questions about a broad range of general-knowledge topics.
The Information subtest measures ability to acquire, retain, and retrieve general factual knowledge.
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Receptive Vocabulary (RV)Receptive Vocabulary (RV)• Receptive Vocabulary is a Verbal
Comprehension subtest for ages 2:6–7:7.
• Receptive Vocabulary has 31 items.
• A total of 23 items are retained from WPPSI-III, and 8 are new.
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RV: DescriptionRV: Description
The child selects the picture that best represents the word the examiner reads aloud.
RV measures receptive language ability and language development.
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Picture Naming (PN)Picture Naming (PN)• Verbal Comprehension subtest for
ages 2:6–7:7.
• Picture Naming has 24 items.
• A total of 20 items are retained from WPPSI-III, and 4 are new.
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PN: DescriptionPN: Description
The child names depicted objects.
The Picture Naming subtest measures expressive language ability and language development.
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Similarities (SI)Similarities (SI)• Core Verbal Comprehension subtest for
ages 4:0–7:7.
• Consists of 23 items: 4 picture items and 19 verbal items.
• All 19 verbal items are retained. All 4 picture items and the sample picture item are new.
• Scoring criteria for all retained items were revised.
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SI: DescriptionSI: Description
Picture Items Verbal Items
The child selects
the response option
that is from the
same category as
two other depicted
objects.
The child is read two
words that
represent common
objects or concepts
and describes how
they are similar.
The Similarities subtest measures verbal concept formation and reasoning.
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Vocabulary (VC)Vocabulary (VC)• Verbal Comprehension subtest for ages
4:0–7:7.
• Consists of 23 items: 3 picture items and 20 verbal items.
• Ten items were retained (1 picture item and 9 verbal items) and 13 items are new (2 picture items and 11 verbal items).
• Scoring criteria for all retained items were revised.
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VC: DescriptionVC: Description
Picture Items Verbal Items
The child names depicted objects.
The child defines words that are read aloud.
The Vocabulary subtest measures word knowledge and verbal concept formation.
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VC: General Scoring PrinciplesVC: General Scoring Principles
Score Criteria
2Good understanding of the word – synonym, major use, general classification.
1
• Response is correct, but shows poverty of content – vague, or less pertinent synonym, minor use, not elaborated.
• Major classification - less pertinent.
0• No clear understanding of word.• Any clearly incorrect response.
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Comprehension (CO)Comprehension (CO)• Verbal Comprehension subtest for
ages 4:0–7:7. • Comprehension has 22 items: 4
picture items and 18 verbal items. – All 4 picture items are new. – Of the verbal items, 17 are retained and
1 is new.
• Scoring criteria for all retained items were revised.
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CO: DescriptionCO: DescriptionPicture Items Verbal Items
The child selects the picture that represents the best response to a general principle or social situation.
The child answers questions based on his or her understanding of general principles and social situations.
The Comprehension subtest measures verbal reasoning and conceptualization, verbal comprehension and expression, the ability to evaluate and use past experience, and the ability to demonstrate practical knowledge and judgment.
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Visual-Spatial SubtestsVisual-Spatial Subtests
SubtestAges
2:6-3:11Ages
4:0-7:7
Block Design C C
Object Assembly C S
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Block Design (BD)Block Design (BD)• Visual Spatial subtest for ages 2:6–7:7.
• BD has 17 items: 13 retained; 4 new.
• One of the new items is a diamond-shaped item with four blocks to extend the ceiling of the subtest.
• A new sample item was added to Part B to familiarize the child with the solid color sides of two-color blocks, and the other sample item is retained.
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BD: DescriptionBD: Description
Working within a specified time limit, the child views a model and/or a picture in a Stimulus Book and uses one- or two-color blocks to re-create the design.
The Block Design subtest measures
ability to analyze and synthesize
abstract visual stimuli.
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BD: Description of TaskBD: Description of Task
• Block Design is divided into two parts − A and B.
• Part A (Items 1–8) is primarily designed for ages 2:6–3:11 and utilizes one-color blocks.
• No degree of rotation, even complete 180°reversals, is penalized in Part A.
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BD: Description of TaskBD: Description of Task
• Two-color blocks are used on Part B (Items 9–17), and only pronounced rotations of 30° or more are penalized.
• Modifications to administration procedures were made for some items to smooth the transition from model to stimulus book presentation.
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BD: Description of TaskBD: Description of Task
As on the WPPSI–III, no time bonuses are utilized due to the relative unfamiliarity of preschoolers with performance under time constraints.
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OrientationOrientation
Model and Stimulus Book
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Block Design-Rotation ErrorsBlock Design-Rotation Errors
• Rotation of 300 or more is considered an error.
• Correct 1st rotation error on Part A and on Part B. “See it goes this way.”
• Penalize rotation errors on Part B only: score = 0.
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BD: Gaps & MisalignmentBD: Gaps & Misalignment
Only those designs with gaps and/or
misalignments that are > ¼” are
penalized and should be scored 0 points.
Acceptable Gaps and Misalignments: ≤ ¼”
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Object Assembly (OA)Object Assembly (OA)• Object Assembly is a Visual Spatial
subtest for ages 2:6–7:7.
• Object Assembly has a total of 13 items.
• Eleven items are retained from WPPSI-III.
• Two new items were added to improve the floor and ceiling of the subtest.
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OA: DescriptionOA: Description
Working within a specified time limit, the child assembles the pieces of a puzzle to create a representation of an identified object.
The OA subtest measures visual-perceptual organization, integration and synthesis of part-whole relationships, nonverbal reasoning, and trial-and-error learning.
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Fluid Reasoning SubtestsFluid Reasoning Subtests
SubtestAges
2:6-3:11Ages
4:0-7:7
Matrix Reasoning NA C
Picture Concepts NA S
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Matrix Reasoning (MR)Matrix Reasoning (MR)
• Fluid Reasoning subtest for ages 4:0–7:7.
• Matrix Reasoning has a total of 26 test items.
– 21 items are retained
– 5 are new
• All 3 sample items are retained.
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MR: DescriptionMR: Description
The Matrix Reasoning subtest
involves fluid intelligence, broad
visual intelligence, classification
and spatial ability, knowledge of
part-whole relationships,
simultaneous processing, and
perceptual organization.
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Picture Concepts (PC)Picture Concepts (PC)• Picture Concepts is a Fluid Reasoning
subtest for ages 4:0–7:7.
• Picture Concepts has 27 items. Of the 22 retained items, 3 were substantively revised.
• There are 5 new items. Both sample items are retained.
• To eliminate inadvertent cues to the correct responses, much of the art is redrawn, and no art appears more than once on the subtest.
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Picture Concepts (PC)Picture Concepts (PC)
The child is presented with two or three rows of pictures and selects one picture from each row to form a group with a common characteristic.
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PC: DescriptionPC: Description
The Picture Concepts subtest
involves fluid and inductive
reasoning visual-perceptual
recognition, organization, and
processing; and conceptual
thinking and crystallized
knowledge.
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Working Memory SubtestsWorking Memory Subtests
SubtestAges
2:6-3:11Ages
4:0-7:7
Picture Memory C C
Zoo Locations S S
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67
Working Memory in WPPSI-IVWorking Memory in WPPSI-IV
Subtests appear to be like traditional STM or recognition memory measures
– Picture Memory is similar to recognition tasks where target picture is identified among others
– Zoo Locations is similar to visual-spatial recall tasks
But, . . .
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68
Working Memory in WPPSI-IVWorking Memory in WPPSI-IV
– Picture Memory and Zoo Locations incorporate proactive interference through reuse of visual stimuli across trials.
– Recent research indicates proactive interference increases processing demands of working memory tasks (Blalock & McCabe, 2011; Carroll, et al., 2010).
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Why Assess Working Memory in Why Assess Working Memory in Young Children?Young Children?
• Related to fluid reasoning.
• Implicated in variety of academic
problems and clinical conditions that
affect young children.
However, measuring WM in young However, measuring WM in young
children is challenging children is challenging
methodologically.methodologically.
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Picture Memory (PM)Picture Memory (PM)• Picture Memory is a Working Memory
subtest for ages 2:6–7:7.
• Picture Memory has 35 items.
• The child views a stimulus page of pictures for a specified time and then selects these pictures from options on a response page. (familiarize-recognize: Reznick, 2009).
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PM: DescriptionPM: Description
The child views a stimulus page of
pictures for a specified time and then
selects these pictures from options on
a response page.
The Picture Memory subtest measures visual working memory using the familiarize–recognize paradigm, for which a set of stimuli is viewed and then recognized from among a set of responses.
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PM: General Directions PM: General Directions cont’dcont’d
• Sample Item B is designed to introduce the child to items that require the selection of multiple response options.
• If the child has not met the discontinue criterion following administration of Item 6, administer Sample Item B before proceeding to Item 7.
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Zoo Locations (ZL)Zoo Locations (ZL)• Working Memory subtest for ages
2:6–7:7.
• The child views animal cards on a zoo layout for a specified time, and then places each card in the previously viewed location.
• Consists of 20 items.
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ZL: DescriptionZL: Description
The child views animal cards on a zoo layout for a specified time, and then places each card in the previously viewed location. (Observe-Perform: Reznick, 2009).
The Zoo Locations subtest measures visual-spatial working memory using the observe–perform paradigm, wherein some action or actions are observed and then repeated or reproduced.
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ZL: MaterialsZL: Materials• Administration and Scoring Manual
• Record Form
• Zoo Locations Layouts
• Zoo Locations Animal Card
• Stopwatch
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Processing Speed SubtestsProcessing Speed Subtests
SubtestAges
2:6-3:11Ages
4:0-7:7
Bug Search NA C
Cancellation NA S
Animal Coding NA S
Ink Dauber
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BS and AC: Test ItemsBS and AC: Test Items
If child completes last item on a page before time limit expires,
EXAMINER turns page. Say, Keep working as fast as you can.
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Bug Search (BS)Bug Search (BS)
• Bug Search is a Processing Speed subtest for ages 4:0–7:7.
• Bug Search has 66 items.
• Working within a specified time limit, the child marks the bug in the search group that matches the target bug.
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BS: DescriptionBS: Description
Working within a specified time limit, the child marks the bug in the search group that matches the target bug.
Bug Search is conceptually similar to Symbol Search, which involves short-term visual memory, visual-motor coordination, cognitive flexibility, visual discrimination, and concentration.
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BS: MaterialsBS: Materials• Administration and Scoring Manual• Record Form• Response Booklet 1• Ink dauber• Stopwatch• Bug Search Scoring Key• Moistened disposable towelettes
(recommended)• Paper Towel (or something similar)
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BS: General DirectionsBS: General Directions
All children complete Dauber Practice on back cover of Response Booklet before proceeding to the demonstration, sample, and test items.
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BS: General DirectionsBS: General Directions
• Each item contains a target and a search group.
• As directed in the instructions for the demonstration and sample items, point to the target and search group as you explain the task to the child.
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BS: Sample ItemsBS: Sample Items
• When the child has successfully completed the sample items, say, That’s right. Now you know how to do them.
• Proceed to Test Items.
Note: Do not proceed with the test items until the child understands the task.
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Cancellation (CA)Cancellation (CA)• Cancellation is a Processing Speed
subtest for ages 4:0–7:7.
• Working within a specified time limit, the child scans two arrangements of objects (one random, one structured) and marks target objects.
• CA has two items – random (CAR) and structured (CAS).
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CA: DescriptionCA: Description
Working within a specified time limit, the
child scans two arrangements of objects
(one random, one structured) and marks
target objects.
The Cancellation subtest involves
perceptual speed, rate of test taking,
speed of visual processing and mental
operation, scanning ability, and visual-
perceptual recognition and
discrimination. It may also involve
attention, concentration, and visual
recall.
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CA: MaterialsCA: Materials• Administration and Scoring Manual• Record Form• Response Booklet 2• Ink dauber• Stopwatch• Cancellation Scoring Template• Moistened disposable towelettes
(recommended)
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CA: General DirectionsCA: General Directions
• The Item 1 and Item 2 targets are articles of clothing.
• The objects for Item 1 are in a random arrangement.
• The objects for Item 2 are in a structured arrangement (i.e., rows).
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CA: General DirectionsCA: General Directions
• Response Booklet is three folded 17 x 11 pages.
• Center page includes the demonstration and sample items.
• Items 1 and 2 appear on the second and third pages, respectively.
• The child should see the entire 17 x 11 spread as each page is administered.
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CA: General DirectionsCA: General Directions
• Each 17x11 page is administered separately to avoid smearing the ink.
• Completed pages are removed from the child’s view and allowed to dry as subsequent pages are administered.
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CA: General Directions CA: General Directions
• Explain and illustrate the task using the demonstration item.
• Allow the child to practice by completing the sample item.
• Proceed to Item 1 only when the child understands the task.
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CA: ScoringCA: Scoring
CorrectCorrect
Marks on a target
IncorrectIncorrect
Marks on a non-target
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Animal Coding (AC)Animal Coding (AC)
• Animal Coding is a Processing Speed subtest for ages 4:0–7:7.
• Animal Coding has 72 items.
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AC: DescriptionAC: Description
Working within a specified time limit and using a key, the child marks shapes that correspond to pictured animals.
The Coding subtest on WPPSI-III assessed short-term memory, learning and visual scanning ability, cognitive flexibility, attention, and motivation.
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Completing Record FormCompleting Record Form
Generating ScoresGenerating Scores
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Generating Standardized Generating Standardized ScoresScores
95
Use Norms and Conversion Tables
Administration Manual
Use Scoring Software
Q-Global
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Raw Score to Scaled ScoreRaw Score to Scaled Score
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InterpretationInterpretation
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Age 4:7Age 4:7Composite &
Index/Subtest Scaled ScoreComposite &
Index/Subtest Scaled Score
Verbal Comprehension 132 Working Memory 97
Information 15 Picture Memory 10
Similarities 16 (Zoo Locations) 9
Visual Spatial 112 Processing Speed 91
Block Design 12 Bug Search 9
Object Assembly 12 (Cancellation) 8
Fluid Reasoning 114
Full Scale IQ = 117 Matrix Reasoning 12
(Picture Concepts) 13
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Using GAI and CPIUsing GAI and CPI
Consider deriving and
interpreting the GAI and the
CPI in a number of clinical
situations, not limited to, but
including the following:
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Compare WMI and PSI to Compare WMI and PSI to Other IndexesOther Indexes
• a significant and unusual discrepancy exists between the WMI and MIS or FSIQ,
• a significant and unusual discrepancy exists between the PSI and MIS or FSIQ,
• a significant and unusual discrepancy exists between the VCIVCI and WMI,
• a significant and unusual discrepancy exists between the VCIVCI and PSI,
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GAI and CPIGAI and CPI• a significant and unusual discrepancy
exists between the VSI and WMI,
• a significant and unusual discrepancy exists between the VSI and PSI,
• a significant and unusual discrepancy exists between the FRI and WMI,
• a significant and unusual discrepancy exists between the FRI and PSI,
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GAI and CPIGAI and CPI• a significant and unusual discrepancy
exists between the WMI and PSI,
• a significant and unusual discrepancy exists between subtests that contribute to either the WMI or to the PSI, or
• a significant and unusual discrepancy exists between a Working Memory or Processing Speed subtest and the MSS-I or MSS-F.
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Psychometric PropertiesPsychometric Properties
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Total n = 1,700−n = 600 for ages 2:6-3:11−n = 1,100 for ages 4:0-
7:7
WPPSI-IV Normative SampleWPPSI-IV Normative Sample
Nationally stratified sample− Age− Sex/Gender− Race/Ethnicity − Parent education level (5 levels) − Geographic Region (NE, S, MW,
W)
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Internal Consistency ReliabilityInternal Consistency Reliability
Average Reliability Coefficient
Composite 2:6-3:11 4:0-7:7
VCI .94 .94
VSI .89 .89
FRI -- .93
WMI .93 .91
PSI -- .86
FSIQ .96 .96
VAI .94 .93
NVI .94 .95
GAI .95 .95
CPI -- .92
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Special Group StudiesSpecial Group StudiesIntellectually Gifted
Intellectual Disability-Mild Severity
Intellectual Disability-Moderate Severity
Developmental Delay-Cognitive
Developmental Risk Factors
Attention-Deficit/Hyperactivity Disorder
Disruptive Behavior
Expressive Language Disorder
Mixed Receptive-Expressive Language Disorder
Emergent Pre-Literacy Concerns
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Developmental Delay-Developmental Delay-CognitiveCognitive
n = 72; ages 2:6-7:6
CompositeCompositeClinical Clinical MeanMean
Control Control MeanMean
MeanMean
Diff.Diff. pp value value Std. Diff.Std. Diff.
VCI 81.7 98.7 16.94 <.01 1.33
VSI 86.4 97.7 11.32 <.01 .79
FRI 84.8 97.5 12.69 <.01 .99
WMI 85.8 97.8 12.04 <.01 .83
PSI 87.9 96.0 8.14 .07 .49
FSIQ 81.4 98.3 16.82 <.01 1.30
VAI 81.3 96.1 14.81 <.01 1.20
NVI 83.1 97.9 14.80 <.01 1.05
GAI 81.6 98.5 16.85 <.01 1.35
CPI 85.9 95.4 9.54 .02 .65
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WPPSI-IV Younger Battery: Core + Supplemental Subtests
Receptive Vocabulary
Picture Naming
Block Design
.82
.72
Object Assembly
Picture Memory
.60
.71
Zoo Locations
.80
.66
.51
Verbal Comprehension
Visual-Spatial
Working Memory
Information
Full Scale
.87
.94
.90
AGFI .97; RMSEA .05
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SummarySummaryClinical Utility of WPPSI-IVClinical Utility of WPPSI-IV
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WPPSI-IV:WPPSI-IV:Enhanced Clinical Utility Enhanced Clinical Utility
• Test structure.
• Score differences comparison methodology.
• Upward age range extension.
• Expressive language requirements.
• Ancillary composite scores.
• Special group studies.
• Statistical linkage to measure of achievement.
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CHC Factor WPPSI-IV Index
Crystallized AbilityVerbal Comprehension
Index
Fluid Reasoning Fluid Reasoning Index
Visual-Spatial Processing Visual Spatial Index
Short-Term Memory/Long-Term Storage and Retrieval
Working Memory
Cognitive Processing Speed
Processing Speed
Auditory ProcessingVocabulary Acquisition Index
CHC Factors and WPPSI-IVCHC Factors and WPPSI-IV
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Gail C. Rodin, Ph.D.Gail C. Rodin, Ph.D.Phone: 919-285-3652Phone: 919-285-3652
Fax: 919-285-3654Fax: 919-285-3654E-mail: E-mail: