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CTONI-2

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Tawanna Howard

on 29 October 2013

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Transcript of CTONI-2

CTONI-2
COMPREHENSIVE TEST OF NONVERBAL INTELLIGENCE

Appropriate for those who understand instructions, capable of pointing response, familiar w/printed pictures and forms

Should not
be administered to those w/serious visual problems

New verbal instructions in variety of non-English languages

Level B Qualification (Pearson)

"Tests don't diagnose, people do"
ADMINISTRATIVE
TIPS
CONSIDERATIONS CONT.
HOW DOES IT MEASURE UP?
USEFUL SETTINGS
BY:
TAWANNA HOWARD
BETHANY HUFFERD
MELISSA KELLER
TEST INFORMATION
TEST DOMAINS
Content- Description Validity:
abilities chosen to measure are consistent w/current knowledge in a particular area. (Table 6.3)

Criterion- Prediction Validity:
effectiveness of a test to predict performance in specified activities (Table 6.10 & 6.11)

Construct Identification Validity
: traits of test reflect the theoretical model in which it is based (Eclecticism?)

In Sum...CTONI-2 strongly relates to other tests of general intelligence, esp. nonverbal.
CTONI-2
SCORING
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ANALOGICAL REASONING
GEOMETRIC ANALOGIES
Measures the ability to recognize two geometric design to each other
Find the same relationship between two different geometric designs
WEAKNESSES
Decreases potential language and motor ability effects on general intelligence scores
Lack of specified theoretical approach (Construct identification)
While Non-English language instructions are considerate, they are not always useful...
Untimed...processing speed not a limitation
STRENGTHS
CATEGORICAL REASONING
PICTORIAL CATEGORIES
Measures the ability to select from a set of different pictures the one that is most similar to two other related pictures
GEOMETRIC CATEGORIES
Ability to select from a set of different geometric design the one that is most similar to two other related geometric designs
SEQUENTIAL REASONING
PICTORIAL SEQUENCES
Measures the ability to select from a set of pictures the one that completes a sequence of actions shown in three pictures
GEOMETRIC SEQUENCES
Measures the ability to select from a set of geometric designs the one that completes a sequence of action shown on three designs
ANY QUESTIONS


Purpose: To provide professionals with a measure of general intelligence using a non-verbal format.

For Who: Language disordered
Non-English speaking
Deaf or hard of hearing
Verbal Testing might be inappropriate (biasing)

Administration Time: 60min.

Ages: 6- 89:11


Evaluating the intellectual status of persons who have a variety of disabilities, such as:
TBI
Post-stroke syndrome
Deafness

For individuals w/ motor impairments, including people who are "simply awkward"

Provide researchers w/a tool to study nature of intelligence, interaction btw/verbal & nonverbal abilities, and role of nonverbal formats.

Diagnose and plan programs







VALID?
Standardization normed w/95% verbal 5% nonverbal
NONE received non-English instruction
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Hand Scoring

Standard Scores (M=10, SD=3), composite scores (M=100, SD=15), percentiles, age equivalents
Measures the ability to recognize the relationship of two objects to each other and find the same relationship between two different objects
Authors: Donald Hammill, Nils Pearson, & Lee Wiederholt
Publication Date: 1996, 2009
Cost: $637/per complete kit
STANDARDIZATION
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REMEMBER
PICTORIAL ANALOGIES

CONSIDERATIONS
STANDARDIZATION

Proper use of ceilings. Three consecutive incorrect responses (Table 2.1)

Subtests have No Basals

Both verbal and nonverbal instructions (Pantomime)

Discontinue subtest if examinee does not respond correctly to at least one practice item.
Simple scoring & administration
RELIABILTY
Internal Consistency: Cronbach's coefficient alpha
Pictorial Scale .90
Geometric Scale .95
Full Scale .95


Test Re-test Stability: 3 age groups each .80 or higher


Interscorer Agreement: significant across all coefficient > .95
Standardization process completed 2007-2008
Sample of 2,827 participants
Sample representatives:
Based on data from U.S Census Bureau
Gender, geographic region, race, parental ed., SES
95% oral administration
5% nonverbal administration
0% non-English administraion
Full transcript