Title: Human Intelligence and the Brain p. 2601
1Human Intelligence and the Brain p. 260-1
- Fetuss central nervous system disrupted by (at
doses much lower than those that cause injury to
an adults brain) - toxic chemical pollutants
- alcohol
- drugs
- cigarette smoke
2Human Intelligence and the Brain p. 260-2
- How the fetus is affected depends on
- developmental stage at the time of exposure
- type and strength of the drug, environmental
toxin, or radiation
3Human Intelligence and the Brain p. 261
- Cognitive functioning of children living in
poverty diminished by - high rates of maternal prenatal complications
- reduced access to health-promoting resources
- increased exposure to lead
- inadequate nutrition
- inadequate home-based cognitive stimulation
4Pollution Lowers IQ
- Research by Perera et al (2009) reported that
children of mothers exposed to high levels of
environmental pollutants during pregnancy have a
four-point drop in their IQs by age 5 - The exposure was to substances called polycyclic
aromatic hydrocarbons (PAHs), a by-product of the
incomplete burning of gas, diesel, oil, and coal.
5Pollution Lowers IQ
- An earlier report found that higher prenatal
exposure to PAHs is associated with lower weight
and smaller head size at birth and developmental
delays at age 3. - The developing fetal brain is particularly
vulnerable to neurotoxic chemicals and exposure
to pollution could cause direct genetic damage.
6Pollution Lowers IQ
- We need to reduce these dangerous emissions by,
for example, reducing diesel truck idling and
requiring cleaner fuels. - Source Perera, F. P., Li, Z., Whyatt, R.,
Hoepner, L., Wang, S., Camann, D., Rauh, V.
(2009). Prenatal airborne polycyclic aromatic
hydrocarbon exposure and child IQ at age 5 years.
Pediatrics, 124. - (Not in text)
7Life Outcomes and Intelligence pp. 262-1
- There is a strong relationship between
intelligence and life outcomes such as economic
and social competence. - Measures of general intelligence predict
occupational level and job performance better
than any other characteristic. - Intelligence is also related to health and
longevity.
8Life Outcomes and Intelligence pp. 262-2
- Research shows that children who had scored
higher on intelligence tests at ages 7, 9, or 11
had fewer adult hospitalizations than those who
had scored lower
9Strengths and Limitations of Intelligence Tests
p. 263-1
- STRENGTHS
- Predict success in a wider variety of human
endeavors better than any other measures
currently in use - Reveal the talents of many individuals and
improve educational opportunities for gifted
students by placing them in more stimulating
programs
10Strengths and Limitations of Intelligence Tests
p. 263-2
- Provide standardized ways of comparing a childs
performance with that of other children of
similar age - Measure a childs ability to compete in society
in ways that have economic and social
consequences - Provide a profile of cognitive strengths and
weaknesses
11Strengths and Limitations of Intelligence Tests
p. 263-3
- Excellent predictors of scholastic achievement
- Measure the effects of changes associated with
special programs, treatments, training, and
recovery from illness - Valuable tools in working with children with
disabilities
12Strengths and Limitations of Intelligence Tests
p. 263-4
- LIMITATIONS
- Provide only a limited understanding of
intelligence - Used to classify children into stereotyped
categories, thereby possibly limiting their
freedom to choose fields of study. - Knowledge of their IQ may inhibit childrens
level of aspiration and affect their self-concept
13Strengths and Limitations of Intelligence Tests
p. 263-5
- Do not measure the processes underlying a childs
responses - Misused as measures of innate capacity
- A single number quantifying IQ does not do
justice to the multidimensional nature of
intelligence
14Strengths and Limitations of Intelligence Tests
p. 263-6
- Limited in predicting nontest or nonacademic
intellectual activity - Cannot capture the complexity and immediacy of
real-life situations involving the use of
intelligence - Sample only a select number of conditions under
which intelligent behavior is revealed
15Strengths and Limitations of Intelligence Tests
p. 263-7
- Fail to give credit to unconventional, original,
or novel responses - Reflect abilities valued by our culture,
including verbal ability, concept formation,
judgment, reasoning, memory, comprehension, and
spatial ability, but only measure a part of a
domain that reflects intelligent behavior
16Strengths and Limitations of Intelligence Tests
p. 263-8
- Tendency to overinterpret the IQ and fail to
focus on the whole child
17WISC-IV
18Verbal Comprehension
WISC-IV Structure p.266-1
- Core Subtests
- Similarities
- Vocabulary
- Comprehension
- Supplemental Subtests
- Information
- Word Reasoning
19Perceptual Reasoning
WISC-IV Structure p.266-2
- Core Subtests
- Block Design
- Picture Concepts
- Matrix Reasoning
- Supplemental Subtest
- Picture Completion
20Working Memory
WISC-IV Structure p.266-3
- Core Subtests
- Digit Span
- Letter-Number Sequencing
- Supplemental Subtest
- Arithmetic
21Processing Speed
WISC-IV Structure p.266-4
- Core Subtests
- Coding
- Symbol Search
- Supplemental Subtest
- Cancellation
22General Ability Index
- GAI Composed of
- Similarities
- Vocabulary
- Comprehension
- Block Design
- Picture Concepts
23GAI Canadian Norms 1
- The GAI can be used as a substitute for the FSIQ
to determine eligibility for special education
services and placement classification. (p. 3) - Increases flexibility, less sensitive to cases
where WM and PS are discrepant from VC and/or PR - Can be compared to FSIQ
24GAI Canadian Norms 2
- Not necessarily a more valid estimate than the
FSIQ - WM and PS are vital to a comprehensive evaluation
of cognitive ability - Excluding WM and PS may give misleading result
- GAI critical values corrected in December 2008
report from January 2005 report
25GAI Canadian Norms 3
- Source Saklofske, D. H., Zhu, J., Raiford, S.
E., Weiss, L. G., Rolfhus, E., Coalson, D.
(2005). General Ability Index Canadian norms.
Technical Report 4.1.2. Retrieved June 10, 2009,
from http//pearsonassess.ca/hai/images/sample-and
-technical-reports/wisc-iv-technical-report-number
-4-4-1-gai-with-canadian-norms.pdf
26Process Scores p. 267
- Block Design No Time Bonus
- Digit Span Forward
- Digit Span Backward
- Longest Digit Span Forward
- Cancellation Random
- Cancellation Structured
- Process scores should never be used to compute
Indexes or the Full Scale IQ.
27Proration p. 270-1
- Acceptable Proration
- If two of the three Verbal Comprehension core
subtests are valid - If two of the three Perceptual Reasoning core
subtests are valid - Not Acceptable Proration
- For Working Memory or Processing Speed
28Proration p. 270-2
- Prorating is similar to using a short form
- Proration should be avoided whenever possible
because it violates the standard test procedure
and introduces unknown measurement error
29Test-age Equivalents p. 270
- Serious psychometric problems but may be useful
- Can be compared with test-age equivalents from
other tests - May help parents, teachers, and others better
understand a childs level of intellectual
functioning - More research is needed
30Table 9-4
- Test-Retest WISCIV Composite Scores for Five Age
Groups and Total Group - See page 274
31Table 9-7
- Summary of Special Group Studies with the WISCIV
- See page 278
32Table 9-8
- Average Correlations Between WISCIV Subtests and
Composites - See page 279
33Table 9-9
- Relationship of WISCIV Indexes and IQs to Sex,
Ethnicity, Parental Education, and Geographic
Region - See page 280
34Table 9-10
- Factor Loadings of WISCIV Subtests for 11 Age
Groups and Total Group Following Principal Axis
Factor Analysis - See pages 282-283
35Table 9-12
- WISCIV Subtests as Measures of g
- See page 285
36Higher Order Confirmatory Factor Analysis p.
285-1
- Composites
- Verbal Comprehension appears to measure verbal
ability, comprehension, knowledge, and
crystallized intelligence (Gc) (Keith et al.,
2006, p. 123). - Perceptual Reasoning appears to measure fluid
reasoning (Gf) as well as visual processing (Gv).
37Higher Order Confirmatory Factor Analysis p.
285-2
- Composites
- Working Memory appears to measure a mixture of
short-term memory skills (Gsm) and fluid
reasoning (Keith et al., 2006, p. 123). - Processing Speed appears to measure processing
speed (Gs).
38Table 9-14
- WISCIV Subtest and Process Score Scaled-Score
Ranges by Age - See page 287
39Subtest Substitution (Supplemental Subtest for
Core Subtest) p. 301
- Information or Word Reasoning may be substituted
for a core Verbal Comprehension subtest. - Picture Completion may be substituted for a core
Perceptual Reasoning subtest. - Arithmetic may be substituted for a core Working
Memory subtest. - Cancellation may be substituted for a core
Processing Speed subtest.
40Subtest Substitution (Questions)p. 302-1
- How can the norms based only on the core subtests
be used when supplemental subtests, which have
different psychometric properties, are
substituted for core subtests? - What are the reliability and validity of the
Indexes and Full Scale IQ when a substitution is
made?
41Subtest Substitution (Questions)p. 302-2
- What confidence intervals can be used for the
Indexes and Full Scale IQ when a substitution is
made? - Why are only two substitutions permitted for the
Full Scale? - Why is only one substitution permitted for each
Composite?
42Subtest Substitution (Questions)p. 302-3
- What evidence is there that Full Scale IQs are
less reliable and valid when three, four, or five
substitutions are made?
43Subtest Substitution (Correlations with
Composites) p. 303-1
- Verbal Comprehension Index
- Information .77
- Word Reasoning .70
- Similarities .89
- Vocabulary .91
- Comprehension .86
44Subtest Substitution (Correlations with
Composites) p. 303-2
- Perceptual Reasoning Index
- Picture Completion .57
- Block Design .81
- Matrix Reasoning .77
- Picture Concepts .84
45Subtest Substitution (Correlations with
Composites) p. 303-3
- Working Memory Index
- Arithmetic .57
- Digit Span .86
- LetterNumber Sequencing .86
46Subtest Substitution (Correlations with
Composites) p. 303-4
- Processing Speed Index
- Cancellation .26
- Coding .88
- Symbol Search .87
47Exhibit 9-3
- Case Study of the Effects of Substitutions on the
Indexes and the - Full Scale IQ
- See page 304
48Short Forms p. 307
- RECOMMENDATION
- Do not use a short form if you need a
classification for a clinical or
psychoeducational purpose or need information for
programming decisions.
49Choosing WISC-IV or WPPSI-III p. 308
- RECOMMENDATION
- The WISCIV should be used with children 6-0 to
7-3 years of age at all ability levels.
50Helpful Tables for Interpreting Wechsler Tests 1
- Table D-1 Percentile ranks and qualitative
descriptions (p. 136) - Table D-2 Confidence intervals based on
estimated true scores (p. 137) - Table D-3 Interpretive rationales for subtests
(p. 155) - Table D-4 Definitions of CHC subtests (p. 165)
51Helpful Tables for Interpreting Wechsler Tests 2
- Table D-5 CHC abilities (p. 166)
- Table D-6 Interpretive rationales for composites
and scales (p. 168) - Table D-7 Suggested remediation activities (p.
171) - Table D-8 Reporting to parents (p. 172)
- Table D-9 Modified instructions for hearing
impaired (p. 175) - Table D-10 Physical abilities necessary and
their adaptation (p. 183)
52Strengths of the WISC-IV pp. 310-311-1
- Excellent standardization
- Good overall psychometric properties
- Useful diagnostic information
- Inclusion of Process scores
- Good administration procedures
53Strengths of the WISC-IV pp. 310-311-2
- Good manuals and interesting test materials
- Helpful scoring criteria
- Usefulness for children with disabilities
- Extensive research and clinical literature with
prior versions of the test
54Limitations of the WISC-IV p. 311-1
- No conversion tables for computing Indexes and
Full Scale IQs when supplemental subtests are
substituted for core subtests - No psychometric basis given for the requirement
that a child must obtain six raw scores of 1 in
order for a Full Scale IQ to be computed
55Limitations of the WISC-IV p. 311-2
- Use of 1,100 children instead of 2,200 children
to standardize Arithmetic - Limited range of scores for children who are
extremely low functioning or children who are
extremely high functioning
56Limitations of the WISC-IV p. 311-3
- Limited criterion validity studies.
- Possible difficulties in scoring responses
- Somewhat large practice effects
- Poor quality of some test materials
- Occasionally confusing guidelines
- Inclusion of Cancellation as a subtest
57Examples of Profile Types on WISC-IV p. 367
- All subtest scaled scores from 14 to 16
- All subtest scaled scores from 2 to 4
- All subtest scaled scores from 3 to 16
- All subtest scaled scores from 8 to 12
58Interindividual Comparison p. 367
- Subtest scaled scores of
- 13 to 19 always indicate a strength
- 8 to 12 always indicate average ability
- 1 to 7 always indicate a weakness
59Developing Hypotheses Based on Significant Index
Differences p. 371-1
- POSSIBLE HYPOTHESES
- Interest patterns
- Cognitive style
- Deficiencies or strengths in processing
information - Deficiencies or strengths in modes of expression
60Developing Hypotheses Based on Significant Index
Differences p. 371-2
- POSSIBLE HYPOTHESES
- Deficiencies or strengths in the ability to work
under time pressure (such as the time constraints
on Perceptual Reasoning subtests) - Sensory deficiencies
- Brain injury
61Developing Hypotheses Based on Significant Index
Differences p. 371-3
- POSSIBLE HYPOTHESES
- Behavioral or emotional problems (such as limited
motivation, rebelliousness, or anxiety) - A home or school environment in which language or
materials differ from those commonly used in the
wider culture - Temporary inefficiencies
62Table 11-3
- Suggested Major Abilities and Background Factors
Associated with WISCIV Composites - See page 373
63Table 11-6
- Suggested Abilities and Background Factors
Associated with WISCIV Subtests - See page 380
64Successive Level Approach to Interpreting the
WISC-IV p. 387
- Level 1Full Scale IQ
- Level 2Indexes
- Level 3Subtests within each Composite
- Level 4Intersubtest variability (subtest
scaled-score differences and Process scaled-score
differences) - Level 5Intrasubtest variability
- Level 6Qualitative analysis
65Steps in Analyzing a Protocol pp. 387-388
- AREAS TO ANALYZE
- Reliability and validity
- Composites
- Statistically significant differences
- Qualitative features
66WISC-IV Full Scale IQ and Indexes p. 390
- WISC-IV Full Scale IQ is not an arithmetic
average of the four Indexes - EXAMPLES
- VCI 100, PRI 100, WMI 99, and PSI 100
Full Scale IQ 101 - VCI 61, PRI 61, WMI 62, and PSI 62 Full
Scale IQ 52 - VCI 140, PRI 141, WMI 141, and PSI 141
Full Scale IQ 151
67(No Transcript)
68WAIS-IV
69Verbal Comprehension
WAIS-IV Structure 1
- Core Subtests
- Similarities
- Vocabulary
- Information
- Supplemental Subtest
- Comprehension
70Perceptual Reasoning
WAIS-IV Structure 2
- Core Subtests
- Block Design
- Matrix Reasoning
- Visual Puzzles
- Supplemental Subtests
- Figure Weights
- Picture Completion
71Working Memory
WAIS-IV Structure 3
- Core Subtests
- Digit Span
- Arithmetic
- Supplemental Subtest
- Letter-Number Sequencing
72Processing Speed
WAIS-IV Structure 4
- Core Subtests
- Symbol Search
- Coding
- Supplemental Subtest
- Cancellation
73WAIS-IV Age Declines 1
- Greatest Declines after Age 70
- Processing Speed Symbol Search and Coding
- Perceptual Reasoning Visual Puzzles, Block
Design, Matrix Reasoning, and Picture Completion
74WAIS-IV Age Declines 2
- Least Declines after Age 70
- Verbal Comprehension Vocabulary, Information,
Similarities and Comprehension - Working Memory Digit Span and Arithmetic
75WAIS-IV Special Group Studies 1
76WAIS-IV Special Group Studies 2
77WAIS-IV Special Group Studies 3
78WAIS-IV Measures of g 1
- GOOD
- Vocabulary
- Similarities
- Comprehension
- Arithmetic
- Information
- Figure Weights
- Digit Span
79WAIS-IV Measures of g 2
- FAIR
- Block Design
- Matrix Reasoning
- Visual Puzzles
- Letter-Number Sequencing
- Coding
- Picture Completion
- Symbol Search
80WAIS-IV Measures of g 3
81Average Correlations Between WAIS-IV Subtests and
Full Scales 1
82Average Correlations Between WAIS-IV Subtests and
Full Scales 2
83Average Correlations Between WAIS-IV Subtests and
Full Scales 3
84Average Correlations Between WAIS-IV Subtests and
Full Scales 4
85WAIS-IV New Subtests 1
- Visual Puzzles
- Description Consists of having the individual
select the three puzzle pieces, from a choice of
six pieces, that when combined form a completed
puzzle. - Abilities measured Visual processing, Spatial
relations, Closure speed, Visualization
86(No Transcript)
87WAIS-IV New Subtests 2
- Visual Puzzles (Continued)
- Reliability .89
- Correlation with Perceptual Reasoning .86
- Correlation with Full Scale .70
88WAIS-IV New Subtests 3
- Figure Weights
- Description
- Consists of individually presented pictures of a
scale with weights on one side and missing
weights on the other side. - Individual must balance the scale by selecting
from five response options that one that will
balance the scale.
89(No Transcript)
90WAIS-IV New Subtests 4
- Figure Weights (Cont.)
- Abilities measured Fluid reasoning, Visual
processing, Induction, Quantitative reasoning,
Visualization
91WAIS-IV New Subtests 3
- Cancellation
- Description
- Consists of two, two-page spreads of colored
shapes. - Individual must mark certain colors and shapes as
directed by the examiner.
92(No Transcript)
93WAIS-IV New Subtests 5
- Cancellation (Cont.)
- Reliability .74
- Correlation with Processing Speed .49
- Correlation with Full Scale .44
94WPPSI-III
95WPPSI-III Structure for Ages 2-6 to 3-11 p.
404-1
Verbal
- Core Subtests
- Receptive Vocabulary
- Information
- Supplemental Subtest
- Picture Naming
96WPPSI-III Structure for Ages 2-6 to 3-11 p.
404-2
Performance
- Core Subtests
- Block Design
- Object Assembly
97WPPSI-III Structure for Ages 2-6 to 3-11 p.
404-3
General Language Composite
- Receptive Vocabulary
- Picture Naming
98WPPSI-III Structure for Ages 4-0 to 7-3 p.
405-1
Verbal
- Core Subtests
- Information
- Vocabulary
- Word Reasoning
- Supplemental Subtests
- Comprehension
- Similarities
99WPPSI-III Structure for Ages 4-0 to 7-3 p.
405-2
Performance
- Core Subtests
- Block Design
- Matrix Reasoning
- Picture Concepts
- Supplemental Subtests
- Picture Completion
- Object Assembly
100WPPSI-III Structure for Ages 4-0 to 7-3 p.
405-3
Processing Speed
- Supplemental Subtest
- Symbol Search
101WPPSI-III Structure for Ages 4-0 to 7-3 p.
405-4
General Language Composite
- Optional Subtests
- Receptive Vocabulary
- Picture Naming
102Table 12-2
- Range of and Average Internal Consistency
Reliabilities, Test-Retest Reliabilities, and
Standard Errors of Measurement for 14 WPPSIIII
Subtests and Five Composites - See page 408
103Table 12-3
- Range and Median Internal Consistency
Reliabilities of WPPSIIII Subtests and
Composites in Each of the Nine Ages Groups and
the Average - See page 409
104Table 12-4
- Test-Retest WPPSIIII Composite Scores for Three
Age Groups and Total Group - See page 410
105Table 12-6
- Summary of WPPSIIII Criterion Validity Studies
- See page 412
106Table 12-7
- Summary of Special Group Studies with the
WPPSIIII - See page 413
107Table 12-8
- Average Correlations Between WPPSIIII Subtests
and Composites for Ages 2-6 to 3-11 - See page 414
108Table 12-9
- Average Correlations Between WPPSIIII Subtests
and Composites for Ages 4-0 to 7-3 - See page 415
109Table 12-10
- Relationship of WPPSIIII IQs and Composite
Scores to Sex, Ethnicity, Parental Education, and
Geographic Region - See page 416
110Table 12-11
- Factor Loadings of WPPSIIII Subtests for Ages
2-6 to 3-11 Following Principal Axis Factor
Analysis - See page 417
111Table 12-12
- Factor Loadings of WPPSIIII Subtests for Ages
4-0 to 7-31 Following Principal Axis Factor
Analysis - See page 418
112Table 12-14
- WPPSIIII Subtests as Measures of g
- See page 420
113Table 12-16
- WPPSIIII Subtest and Scaled-Score Ranges by Age
- See page 422
114Table 12-17
- WPPSIIII IQ Ranges for Verbal, Performance, Full
Scale, and Processing Speed Composites, for Ages
2-6 to 3-11 and 4-0 to 7-3 - See page 423
115Strengths of the WPPSI-III pp. 435-436
- Excellent standardization
- Good overall psychometric properties
- Useful diagnostic information
- Good administration procedures
- Good manuals and interesting test materials
- Helpful scoring criteria
- Usefulness for children with some disabilities
116Limitations on the WPPSI-III p. 436-1
- Severely limited breadth of coverage at ages 2-6
to 3-11 - Limited breadth of coverage at ages 4-0 to 7-3
- No conversion tables for computing Composite
scores and Full Scale IQs when supplemental
subtests are substituted for core subtests
117Limitations on the WPPSI-III p. 436-2
- No psychometric basis for the requirement that a
child must obtain a certain number of raw scores
of 1 in order for a Full Scale IQ to be computed - Limited range of scores for children who are
extremely low functioning or children who are
extremely high functioning
118Limitations on the WPPSI-III p. 436-3
- Variable ranges of subtest scaled scores at ages
4-0 to 7-3 - Limited criterion validity studies
- Possible difficulties in scoring responses
- Somewhat large practice effects
- Poor quality of some test materials
- Occasional confusing guidelines
119Table 13-1
- Suggested Major Abilities and Background Factors
Associated with WPPSIIII Composites - See page 482
120Table 13-2
- Suggested Abilities and Background Factors
Associated with WPPSIIII Subtests - See page 485
121(No Transcript)
122STANFORD-BINET FIFTH EDITION
123SB5 Structure
- Full Scale, Factor Indexes, Subtests, and
Activities on SB5 - See page 569
124SB5 Special Terms pp. 568-569
- Routing procedure Administering the Nonverbal
Fluid Reasoning subtest and Verbal Knowledge
subtest - Testlet All items on a subtest at one particular
level of difficulty - Activity All items of a particular type
125Table 16-2
- Average Internal Consistency Reliability
Coefficients, Test-Retest Reliability
Coefficients, and Standard Errors of Measurement
for SB5 Subtests, Factor Indexes, and IQs - See page 571
126Table 16-3
- Range of Internal Consistency Reliabilities of
SB5 Subtests for 23 Age Groups and Total Group - See page 572
127Table 16-5
- Summary of SB5 Criterion Validity Studies
- See page 574
128SB5 Factor Analysis (p. 575)
- Several Factor Analytic studies find
- Strong support for a general factor
- One study gave no support for either a two-factor
model or five-factor model - One study gave some support for a verbal and
nonverbal factor at younger ages but not at older
ages
129Table 16-6
- Summary of Special Group Studies with the SB5
- See page 576
130Table 16-7
- Average Correlations Between SB5 Subtests, Factor
Indexes, and IQs - See page 577
131Table 16-8
- SB5 Subtests as Measures of g
- See page 577
132Table 16-10
- SB5 Subtest Scaled-Score Ranges by Age
- See page 579
133Table 16-11
- Range of SB5 Factor Index Scores, Nonverbal IQs,
Verbal IQs, and Full Scale IQs by Age - See page 580
134Successive Level Approach to Interpreting the SB5
p. 597
- Level 1Full Scale IQ
- Level 2Nonverbal IQ and Verbal IQ
- Level 3Factor Index scores
- Level 4Subtest within Domains
- Level 5Intersubtest variability
- Level 6Qualitative analysis
135Steps in Analyzing a Protocol pp. 598-599
- AREAS TO ANALYZE
- Reliability and validity
- Composites
- Significant differences
- Qualitative features
136Helpful Tables for Interpreting SB5
- Table E-1 Interpretive rationales for subtests
(p. 188) - Table E-2 Definitions of CHC factors (p. 192)
- Table E-3 CHC subtests (p. 193)
- Table E-4 CHC factors (p. 194)
137Strengths of the SB5 p. 599
- Excellent standardization
- Good reliability and concurrent validity
- Good Technical Manual and Interpretive Manual
- Good test materials
- Usefulness for individuals with some disabilities
138Limitations of the SB5 p. 599
- Questionable construct validity
- Complex, flexible, and somewhat imprecise
administrative procedures - Complex organization of the test
- Inconvenient location of administrative guidelines
139DAS-II
140DAS-II Structure p. 606
- Early Years Battery
- Lower-level Ages 2-6 to 3-5
- Upper-level Ages 3-6 to 6-11
- School-Age Battery
- Ages 7-0 to 17-11
141DAS-II Terms Referring to Age Ranges p. 610-1
- Usual age range Ages at which a subtest is
ordinarily administered - Extended age range Ages at which a core subtest
is administered for additional diagnostic
information. Use - To substitute for a spoiled subtest
- When children have difficulty passing subtests
appropriate for their age - When children continue to pass all or most of the
items appropriate for their age
142DAS-II Terms Referring to Age Ranges p. 610-2
- Out-of-level age range Ages at which a subtest
can be administered to children who function at
unusually high or low levels for their age
(usually diagnostic subtests)
143Table 17-1
- Usual, Extended, and Out-of-Level Age Ranges of
Core and Diagnostic Subtests on the DASII - See page 606
144Figure 17-1
- Structure of Core Clusters on
- the DASII Early Years Battery
- See page 609
145Figure 17-2
- Structure of Core Clusters
- on the DASII School-Age Battery
- See page 609
146Figure 17-3
- Structure of Diagnostic Clusters on the DASII
Early Years Battery - See page 610
147Figure 17-4
- Structure of Diagnostic Clusters on the DASII
School-Age Battery - See page 611
148Table 17-3
- Average Internal Consistency Reliabilities,
Standard Errors of Measurement, and Test-Retest
Reliabilities for 20 DASII Subtests, Six
Clusters, and Two Composites - See page 614
149Table 17-4
- Range and Median Internal Consistency
Reliabilities of DASII Early Years Battery
Subtests at Seven Age Groups and the Average - See page 615
150Table 17-5
- Range and Median Internal Consistency
Reliabilities of DASII School-Age Battery
Subtests at 11 Age Groups and the Average - See page 615
151Table 17-7
- Summary of Criterion Validity Studies Comparing
DASII with Other Measures of Intelligence - See page 617
152Table 17-8
- Summary of Criterion Validity Studies Comparing
DASII with Measures of Achievement - See page 618
153Table 17-9
- Summary of Special Group Studies
- with the DASII
- See page 619
154Table 17-10
- Average Correlations Between DASII Subtests and
Clusters and GCA - See page 620
155DAS-II Factor Analysis (pp. 621-622-1)
- Lower-level Early Years Battery
- Three factors found that are difficult to define
- Upper-level Early Years Battery
- Seven factors found but some are difficult to
define - Clear support for Verbal, Nonverbal, Spatial,
Working Memory and Processing Speed - No support for School readiness
156DAS-II Factor Analysis (pp. 621-622-2)
- School-Age Battery
- Six factors found but some are difficult to
define - Clear support for Verbal and Working Memory
factors - Nonverbal Reasoning factor joined with Special
Ability factor - Processing Speed factor not clear
- Visual-memory factor not clear
157Table 17-11
- DASII Subtests as Measures of g
- See page 622
158Table 17-12
- Ages at Which Core and Diagnostic Subtests Have a
Full Range of T Scores (10 to 90) - See page 623
159Proration on DAS-II p. 623
- We strongly recommend not prorating, because the
childs score on the missing subtest might have
been much higher or lower than scores on the
other subtests in the Composite
160Table 17-13
- DASII Cluster T-Score Ranges by Lowest and
Highest Ages in the Respective Battery - See page 624
161Helpful Tables for Interpreting DAS-II
- Table F-1 Interpretive rationales for subtests
(p. 202) - Table F-2 Definitions of CHC factors (p. 210)
- Table F-3 CHC core subtests (p. 212)
- Table F-4 CHC diagnostic subtests (p. 213)
- Table F-5 Interpreting composites and clusters
(p. 214)
162DAS-II Profile Analysis p. 659
- CATEGORIZATION OF SUBTEST SCALED SCORES
- 60 to 90 always indicate a strength
- 41 to 59 always indicate average ability
- 10 to 40 always indicate a weakness
163Table 17-14
- Suggested Major Abilities and Background Factors
Associated with DASII Clusters and Composites - See page 660
164Table 17-15
- Suggested Major Abilities and Background Factors
Associated with DASII Core Subtests - See page 661
165Table 17-16
- Suggested Major Abilities and Background Factors
Associated with DASII Diagnostic Subtests - See page 662
166Developing Hypotheses Based on Significant
Cluster Score Differences p. 665-1
- POSSIBLE HYPOTHESES
- Interest patterns
- Cognitive style
- Deficiencies or strengths in processing
information - Deficiencies or strengths in modes of expression
167Developing Hypotheses Based on Significant
Cluster Score Differences p. 665-2
- POSSIBLE HYPOTHESES
- Deficiencies or strengths in the ability to work
under time pressure - Sensory or motor deficiencies
- Brain injury
168Developing Hypotheses Based on Significant
Cluster Score Differences p. 665-3
- POSSIBLE HYPOTHESES
- Behavioral or emotional problems (such as limited
motivation, rebelliousness, or anxiety) - A home or school environment in which language or
materials differ from those commonly used in the
wider culture - Temporary inefficiencies
169Strengths of the DAS-II pp. 667-668-1
- Excellent standardization
- Good overall psychometric properties
- Useful diagnostic information
- Good administration procedures
- Good manuals and interesting test materials
170Strengths of the DAS-II pp. 667-668-2
- Helpful scoring criteria
- Usefulness for children with hearing disabilities
- Norms for very high or very low functioning
children
171Limitations of the DAS-II p. 668
- Severely limited breadth of coverage at ages 2-6
to 3-5 - Lack of a comparable battery throughout the age
ranges covered - Variable range of scores
- Difficulty in scoring responses
- Only two subtests per cluster
- Complexity of the organization of the test,
administration guidelines, and Record Form
172SPECIALIZED MEASURES
173Bayley Scales of Infant and Toddler
Development-Third Edition p. 677
- FIVE SCALES
- Cognitive Scale
- Language Scale
- Motor Scale
- Social-Emotional Scale
- Adaptive Behavior Scale
174KABC-II pp. 682-683
- FIVE SCALES
- Sequential Processing/Short-Term Memory Scale
- Simultaneous Processing/Visual Processing Scale
- Planning Ability/Fluid Reasoning Scale
- Learning Ability/Long-Term Storage and Retrieval
Scale - Knowledge Scale/Crystallized Ability Scale
175KBIT-2 pp. 684-685
- STRUCTURE
- Verbal Score
- Verbal Knowledge
- Riddles
- Nonverbal Score
- Matrices
176RIAS p. 688-1
- STRUCTURE
- Verbal Intelligence
- Guess What
- Verbal Reasoning
- Nonverbal Intelligence
- Odd-Item Out
- Whats Missing
177RIAS p. 688-2
- STRUCTURE
- Composite Memory
- Verbal Memory
- Nonverbal Memory
- Composite Intelligence Index Verbal
Intelligence Nonverbal Intelligence
178RIAS Validity p. 689
- Factor analysis by Nelson, Canivez, Lindstron,
and Hatt (2007) reported the following - No verbal factor
- No nonverbal factor
- No memory factor
- RIAS has a general intelligence factor
179WISC-IV Integrated pp. 693-696
- FOUR DOMAINS
- Verbal
- Perceptual
- Working Memory
- Processing Speed
180WISC-IV Integrated p. 695
- EXAMPLES OF RESTRICTED RANGES OF SCALED SCORES
(Possible range of 1 to 19) - Picture Vocabulary Multiple Choice has a
scaled-score range of 1 to 15 at ages 15-4 to
15-7 - Elithorn Mazes No Time Bonus has a scaled-score
range of 3 to 16 at ages 10-8 to 10-11 and a
scaled-score range of 1 to 13 at ages 14-8 to
14-11
181WISC-IV Integrated p. 695
- LetterNumber Sequencing Process Approach has a
scaled-score range of 6 to 19 at ages 7-0 to 7-3
182WISC-IV Integrated Comment p. 696
- Like a normed testing-of-limits
- Not an independent instrument for assessing
overall cognitive ability - Does not provide an in-depth evaluation of
neuropsychological functioning - Be aware of low reliabilities and restricted
ranges of scaled scores for some subtests
183Wechsler Nonverbal Scale of Ability p. 696
- SIX SUBTESTS
- Matrices
- Coding
- Object Assembly
- Recognition
- Spatial Span
- Picture Arrangement
184WJ III COG p. 698-1
NONUNIFORM RANGE OF STANDARD SCORES
- Example 1 A 15-year-old with 1 point on 14 tests
- GIA 1
- Auditory Working Memory 27
- Analysis-Synthesis 40
185WJ III COG p. 698-2
NONUNIFORM RANGE OF STANDARD SCORES
- Example 2 A 15-year-old with the highest score
on 14 tests - GIA 177
- Concept Formation 129
- Incomplete Words 200
186WJ III COG p. 700
- ITEM GRADIENTS
- Research by Krasa (2007)
- Results
- Only 7 of 20 cognitive tests have adequate item
gradients - Remaining 13 tests are too steeply graded
- Conclusion
- The 13 tests provide less sensitive measures of
ability
187Informal Assessment of Multiple Intelligences p.
700
- See Table G-7 on page 243in the Resource Guide
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191REPORT WRITING
192Table 19-1
- Questions and Topics to Consider in Preparing a
Psychological or Psychoeducational Report - See page 706
193Recommendations p. 714-1
- QUESTIONS
- Representativeness of findings
- Generalizability of findings
- Consideration of all relevant factors
- Childs eligibility for special programs
- Type of intervention program needed
- Goals of intervention program
194Recommendations p. 714-2
- Using childs strengths
- Involving family members
- Possibility of implementing recommendations
- Who will carry out recommendations?
- Clarity of recommendations
195Recommendations p. 714-3
- Detailed sufficiently?
- Further evaluations?
- Follow-up evaluations?
196Table 19-3
- Examples of School-Based Interventions
- See page 729
197Table 19-5
- Checklist for Accuracy and Completeness of an
Assessment Report - See page 743
198Table 19-6
- Evaluation Form for Psychological or
Psychoeducational Reports - See page 752
199Spelling Chequer p.742-1
- Eye halve a spelling chequer
- It came with my pea sea
- It plainly marques four my revue
- Miss steaks eye kin knot sea.
- Eye strike a key and type a word
- And weight four it two say
- Weather eye am wrong oar write
- It shows me strait a weigh.
200Spelling Chequer p.742-2
- As soon as a mist ache is maid
- It nose bee fore two long
- And eye can put the error rite
- Its rare lea ever wrong.
- Eye have run this poem threw it
- I am shore your pleased two no
- Its letter perfect awl the weigh
- My chequer tolled me sew.
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204Children Learn What They Liveby Dorothy Law
Nolte 1
- If children live with criticism,
They learn to condemn. If
children live with hostility, They
learn to fight. If children live with
ridicule, They learn to be
shy. If children live with shame,
They learn to feel guilty. If
children live with encouragement,
They learn confidence.
205Children Learn What They Liveby Dorothy Law
Nolte 2
- If children live with
tolerance, They learn to be
patient. If children live with
praise, They learn to
appreciate. If children live with
acceptance, They learn to
love. If children live with
approval, They learn to like
themselves.
206Children Learn What They Liveby Dorothy Law
Nolte 3
- If children live with
honesty, They learn
truthfulness. If children live with
security, They learn to have faith
in - themselves and others.
If children live with friendliness,
They learn the world is a nice - place in which to live.