Introducing NEPSY-II Gail C. Rodin, Ph.D. Assessment Consultant Pearson/PsychCorp.
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Transcript of Introducing NEPSY-II Gail C. Rodin, Ph.D. Assessment Consultant Pearson/PsychCorp.
![Page 1: Introducing NEPSY-II Gail C. Rodin, Ph.D. Assessment Consultant Pearson/PsychCorp.](https://reader036.fdocuments.net/reader036/viewer/2022081800/551421f05503466d1a8b48d4/html5/thumbnails/1.jpg)
IntroducingNEPSY-II
Gail C. Rodin, Ph.D.Assessment ConsultantPearson/PsychCorp
![Page 2: Introducing NEPSY-II Gail C. Rodin, Ph.D. Assessment Consultant Pearson/PsychCorp.](https://reader036.fdocuments.net/reader036/viewer/2022081800/551421f05503466d1a8b48d4/html5/thumbnails/2.jpg)
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Use of NEPSY-II
Typical use is to determine “Is child’s performance low in particular skill areas?”
Gather data on child’s strengths and weaknesses
But NP tests designed primarily to distinguish normal vs. deficient performance Above average or superior performance
often not possible or relevant
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What is Considered a Low Score?Issues to Consider
WISC-IV mean subtest scores for childrenwith Mild MRRange from: 3.8 (Arithmetic)
-to- 6.2 (Cancellation)
Most Mild MR means near 4.5
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What is Considered a Low Score?Issues to Consider
Most clinical groups are not as functionally impaired as children with MR
Therefore, mean scores for most clinical groups expected to fall in range of 5 – 8 For mild to moderate disorders
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What is Considered a Low Score?Issues to Consider
Effect size above .8 is considered largefor subtest scaled scores
Large effects translate into clinical meansof ~ 7.5
Moderate effect sizes: .4 – .8 Subtest scaled scores of 7.6 – 8.8
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What is Considered a Low Score?
Rules of thumb: Most clinical groups obtain scaled scores
between 5 and 8 Can use scaled score of 7 or lower as rough
break-point for problem areas But even scaled scores of 8 and 9 can be meaningful
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What is Considered a Low Score?Issues to Consider
Subtest scaled scores are not linear Distance btwn scaled scores of 9 & 8 = 12 percentiles Distance btwn scaled scores of 8 & 7 = 9 percentiles
As approach the mean, scoring one subtest scaled score point lower drops child further compared to peers
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What is Considered a Low Score?Issues to Consider
Important to consider unequal subtest scaled score differences when: Looking at profiles of scores Deciding if a score seems low for particular child
For example, same difference of 7 percentiles exists between scaled scores of:
6 and 7
-and- 4 and 6
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What is Considered a Low Score?Issues to Consider
Score on a specific test indicates only how far child’s performance is from meanof that test
A low score does not necessarily imply: Impairment
-or- A specific diagnosis
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What is Considered a Low Score?Issues to Consider
Attributions must be backed up by more than one piece of data
Clinician must corroborate test findings with: Performance on other measures
-or- Indicators of daily functioning
Preponderance of evidence requiredto document an impairment
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Gail C. Rodin, Ph.D.
Assessment Consultant
Pearson/PsychCorp
Phone: 919.285.3652
Fax: 919.285.3654
E-mail: [email protected]