Understanding Cognitive and Educational Assessments

Overview for Educators

Teachers often receive psychoeducational evaluation reports with complex scores and terminology. This guide helps educators understand and apply assessment results to instruction.

Standard Score Interpretation

The Bell Curve Basics

• Mean (Average): 100
• Standard Deviation: 15 points
• "Normal Range": 85-115 (captures ~68% of population)

Score Classification System

Confidence Intervals

• Reports show confidence intervals (e.g., 95% CI: 92-104)
• True score likely falls within this range
• Larger intervals = less reliable measurement

Common Cognitive Assessments

WISC-V (Wechsler Intelligence Scale for Children)

Primary Index Scales:

1. Verbal Comprehension Index (VCI)
2. Measures: Word knowledge, verbal reasoning, verbal concept formation
3. Subtests: Similarities, Vocabulary, (Comprehension)

4. Low VCI suggests: Vocabulary instruction, language-rich activities

5. Visual Spatial Index (VSI)

6. Measures: Visual perception, spatial reasoning, part-whole relationships
7. Subtests: Block Design, Visual Puzzles

8. Low VSI suggests: Visual supports, manipulatives, explicit spatial instruction

9. Fluid Reasoning Index (FRI)

10. Measures: Reasoning with novel information, pattern recognition
11. Subtests: Matrix Reasoning, Figure Weights

12. Low FRI suggests: Explicit strategy instruction, think-alouds, scaffolding

13. Working Memory Index (WMI)

14. Measures: Holding and manipulating information mentally
15. Subtests: Digit Span, Picture Span

16. Low WMI suggests: Reduce memory load, written instructions, chunking

17. Processing Speed Index (PSI)

18. Measures: Speed of mental processing, visual scanning, decision making
19. Subtests: Coding, Symbol Search
20. Low PSI suggests: Extended time, reduced workload, limit time pressure

Full Scale IQ (FSIQ) - Composite of all five indices - Best single predictor of academic achievement - But individual indices often more useful for intervention planning

WISC-V Interpretation Patterns

Pattern 1: Verbal > Nonverbal - Strengths: Language-based learning, verbal instruction, discussion - Support: Pair visual tasks with verbal explanation, use verbal reasoning

Pattern 2: Nonverbal > Verbal - Strengths: Visual learning, hands-on activities, demonstrations - Support: Use visuals, reduce verbal load, allow visual expression

Pattern 3: Low Processing Speed with Average Other Scores - The "slow processor" pattern - Student understands but needs more time - Critical accommodation: Extended time on all timed tasks

Pattern 4: Low Working Memory with Average Other Scores - Difficulty with multi-step tasks - May look like attention problems - Support: External memory aids, written instructions, chunking

Woodcock-Johnson IV (WJ-IV)

Cognitive Battery (WJ-IV COG): - Comprehension-Knowledge (Gc): Acquired knowledge - Fluid Reasoning (Gf): Novel problem-solving - Short-Term Working Memory (Gwm): Holding information - Processing Speed (Gs): Cognitive automaticity - Auditory Processing (Ga): Sound discrimination and manipulation - Long-Term Retrieval (Glr): Storing and retrieving information - Visual Processing (Gv): Visual-spatial thinking

Achievement Battery (WJ-IV ACH): - Reading: Letter-Word Identification, Passage Comprehension, Word Attack - Mathematics: Calculation, Math Facts Fluency, Applied Problems - Written Language: Spelling, Writing Samples, Sentence Writing Fluency

Ability-Achievement Discrepancy: - Compares cognitive ability to actual achievement - Significant discrepancy may indicate SLD - Florida uses this along with RTI data for SLD determination

KTEA-3 (Kaufman Test of Educational Achievement)

Reading: - Letter & Word Recognition - Reading Comprehension - Phonological Processing - Nonsense Word Decoding - Word Recognition Fluency - Decoding Fluency - Silent Reading Fluency

Math: - Math Concepts & Applications - Math Computation - Math Fluency

Written Language: - Written Expression - Spelling

Oral Language: - Listening Comprehension - Oral Expression

Achievement vs. Ability Analysis

Expected Achievement

• When achievement matches cognitive ability = student is reaching potential
• When achievement is below ability = possible disability or other barrier
• When achievement exceeds measured ability = strong instruction, motivation, or test limitation

Pattern Analysis for SLD Identification

Dyslexia Pattern: - Low: Phonological processing, rapid naming, word reading, spelling - Average/High: Listening comprehension, verbal reasoning, math reasoning - Key: Phonological deficit is the "signature"

Dyscalculia Pattern: - Low: Math calculation, math fluency, math reasoning - Average/High: Reading, verbal skills - May also show: Visual-spatial weaknesses, working memory issues

Dysgraphia Pattern: - Low: Spelling, written expression, writing fluency - Average/High: Oral expression, reading - May show: Fine motor difficulties, visual-motor integration weakness

Understanding Evaluation Reports

Key Sections to Review

1. Reason for Referral
2. What concerns prompted the evaluation?

3. What questions need to be answered?

4. Background Information

5. Developmental history
6. Educational history

7. Prior interventions and their effectiveness

8. Behavioral Observations

9. How did the student approach testing?
10. Attention, effort, anxiety noted?

11. These affect validity of results

12. Assessment Results

13. Cognitive scores and what they mean
14. Achievement scores in each area

15. Comparisons and patterns

16. Summary and Diagnostic Impressions

17. What diagnoses/classifications are given?

18. How do the scores support conclusions?

19. Recommendations

20. Most actionable section for teachers
21. Specific strategies and accommodations

Questions to Ask the School Psychologist

1. "What are this student's learning strengths that I can build on?"
2. "What specific accommodations will help this student most?"
3. "How should I modify my instruction for this student?"
4. "What does this score pattern mean for how they learn best?"
5. "Are there specific programs or strategies research supports for this profile?"

Using Assessment Data for Instruction

Step 1: Identify the Cognitive Profile

• What are the relative strengths?
• What are the relative weaknesses?
• Which weaknesses most impact academics?

Step 2: Match Instruction to Profile

Step 3: Leverage Strengths

• Use strong modality to support weak areas
• If verbal is strong: use verbal mediation strategies
• If visual is strong: use visual supports for everything

Step 4: Monitor and Adjust

• Track progress with the accommodations
• Adjust intensity based on response
• Communicate with specialists regularly

Florida-Specific Considerations

SLD Eligibility in Florida

Florida uses a combination approach: 1. Response to Intervention (RTI) data showing inadequate progress 2. Comprehensive evaluation showing ability-achievement patterns 3. Exclusion of other factors

FAST Assessment Connection

• FAST scores provide screening data
• Low FAST scores trigger Tier 2/3 intervention
• Progress monitoring during intervention informs evaluation decision

IEP Development

• Evaluation data drives IEP goals
• Accommodations should address specific cognitive weaknesses
• Services matched to areas of need

Common Misinterpretations to Avoid

1. "Low IQ means they can't learn"
2. FALSE: All students can learn with appropriate instruction

3. IQ predicts rate of learning, not capacity

4. "High IQ means no disability"

5. FALSE: Twice-exceptional students exist (gifted + disability)

6. Look at patterns and discrepancies, not just composite scores

7. "Processing speed issues = ADHD"

8. NOT NECESSARILY: Many conditions affect processing speed

9. Need comprehensive evaluation to determine cause

10. "Working memory = attention"

11. RELATED BUT DIFFERENT: Working memory is a cognitive capacity
12. Attention is behavioral focus

13. Both can look similar in the classroom

14. "One low score = disability"

15. NOT AUTOMATICALLY: Need pattern of weaknesses
16. Must impact academic functioning
17. Must persist despite intervention