A Family Friendly Guide to Understanding Psychological Test Scores - - PowerPoint PPT Presentation

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A Family Friendly Guide to Understanding Psychological Test Scores - - PowerPoint PPT Presentation

Sep 16, 2023 367 likes •900 views

A Family Friendly Guide to Understanding Psychological Test Scores and Results Natasha Ludwig, Ph.D. Roshni Rao, Psy.D. T. Andrew Zabel, Ph.D., ABPP Kennedy Krieger Institute Department of Neuropsychology Show us what you know! Factors

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A Family Friendly Guide to Understanding Psychological Test Scores and Results

Natasha Ludwig, Ph.D. Roshni Rao, Psy.D.

  • T. Andrew Zabel, Ph.D., ABPP

Kennedy Krieger Institute Department of Neuropsychology

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SLIDE 2
  • Show us what you know!
  • The Bell Curve
  • Defining Impairment &

Strengths

  • Standardized Scores Over

Time

  • Factors that Impact

Performance

  • Practice IEP Meeting
  • Show off what you

learned!

  • Resources
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Kahoot.it

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100

Standard Score:

Mean Average=100

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10

Scaled Score:

Mean Average=10

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SLIDE 8

Z-Score:

Mean Average=0

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50 %ile

Percentile:

Midpoint=50%ile

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SLIDE 10

50

T-Score:

Mean Average=50

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Average (“Mean”)

Standard Score (IQ) 100 Scaled Score 10 T-Score 50 Z-Score

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68%

Standard Deviations

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68%

Standard Score:

Mean Average=100 Standard Deviation=15

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68%

Standard Score:

Mean Average=100 Standard Deviation=15

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68%

Scaled Score:

Mean Average=10 Standard Deviation=3

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68%

Z-Score:

Mean Average=0 Standard Deviation=1

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68%

Percentile:

Percentile Midpoint=50%ile Standard Deviation=?

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68%

T-Score:

Mean Average=50 Standard Deviation=10

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Average (“Mean”) Standard Deviation

Standard Score (IQ) 100 15 Scaled Score 10 3 T-Score 50 10 Z-Score 1

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68% 96%

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68% 96%

70

Standard Score:

Mean Average=100

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68% 96%

4

Scaled Score:

Mean Average=10

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68% 96%

  • 2

Z-Score:

Mean Average=0

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68% 96%

2.3 %ile

Percentile:

Midpoint=50%ile

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68% 96%

30

T-Score:

Mean Average=50

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How do you define strengths and impairments?

Absolute:

  • 1 standard deviation

below the mean?

  • 1.5 standard

deviations below the mean?

  • 2 standard deviations

below the mean?

Relative:

  • 20 standard score

point discrepancy between scores?

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SLIDE 27

Typical or Unusual?

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110

Standard Score=110

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8

Scaled Score=8

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  • 2.5

Z-Score= -2.5

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75%ile

Percentile= 75th %ile

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45

T-Score=45

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68% 96% 99%

Everybody got it? Questions?

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Let’s go to an IEP meeting!

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WISC-5

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Grooved Pegboard

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ChAMP

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NEPSY-2

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Sometimes a high score means there is a problem…

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Now you are ready to understand what is going on at an IEP meeting… But there’s a few more things you need to know!

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  • Important Questions to bring to an IEP meeting or a feedback

session

– What are my child’s strengths and weaknesses? – What are the diagnoses and how did you get there? – How do these test scores inform recommendations / interventions? – What do these scores mean for my child in the classroom or real world settings? – Do you think this testing is valid / true representation of skills? – How does this compare to previous testing?

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What can negatively impact test scores (besides ability…)

  • History
  • Behavior &

Motivation

  • Fatigue
  • Medications
  • Emotional

Functioning

  • Functional

Impairments

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Age 6 9 12 15 # Items Correct 100 100 100 100

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SLIDE 44

Age 6 9 12 15 # Items Correct 75 75 75 75

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Why do we do psychological assessments?

  • Getting needs met in

school (IEP meetings)

  • Supports and

accommodations

  • Placements
  • Therapies
  • Outside therapies or

interventions

  • Access services
  • Care coordination
  • Tracking of skills over

time

  • Document progress
  • Monitor for declines
  • To understand strengths

and weaknesses

  • How to best learn
  • Vocational options
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Kinds of Assessments

  • Psychological
  • Clinical Psychologist
  • Questions about cognitive skills

and psychological diagnoses

  • Educational
  • School psychologist
  • Questions about academic skills
  • Psychoeducational
  • Clinical or school psychologist
  • Questions about cognitive skills,

psychological diagnoses, and academic skills

  • Neuropsychological
  • Neuropsychologist
  • Questions about all of these

things in children with medical conditions

  • Multidisciplinary
  • Physical Therapy (PT)/

Occupational Therapy (OT)/ Speech and Language Therapy

  • Psychiatric
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SLIDE 47
  • PAR Toolkit app
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SLIDE 48
  • National Center for Learning Disabilities (NCLD)

Handout

– https://www.ncld.org/ – Endrew F. Advocacy Toolkit: https://www.understood.org/en/school- learning/your-childs-rights/basics-about-childs- rights/download-endrew-f-advocacy-toolkit

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Kahoot.it

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Thank you!!!

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WISC-5

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