Administering and Interpreting anInformal Reading Inventory (IRI)

Part 3: Diagnostic Analysis(Melissa Case)

John E. McEneaneyOakland University

Rochester, MI

IRI Diagnostic Analysis

You should be able to …

1. Generate hypotheses about relative strengths and weaknesses in word recognition and comprehension.

2. Recognize implausible hypotheses based on IRI data.

3. Justify a diagnostic analysis that is based on IRI data.

4. Relate hypotheses about reading levels and relative strengths and weaknesses based on IRI data.

Review of Reading Levels

Reading Level

Word Recognition

Percentage

Comprehension

Percentage

Independent 99-100% 90-100%

Instructional 95-98% 75-89%

Instructional or

Frustrational91-94% 51-74%

Frustration 90% or less 50% or less

Informal Reading InventoryStudent: Tatiana Grade: 7 Age: 14

Word

List (A)

Oral Reading (Form A) Silent Reading (B)

LST

Overall

RLsWord Recognition Comprehension Comprehension Comp

Level % % RL % RL % RL %

5 100 100 80 100 100

6 100 100 55 85 100

7 95 96 40 80 90

8 80 82 70 80

9 50 55 40 65

40

Review of puzzling IRI data: What might explain this?

Hint: R = WR X COMP

Word List Coding Example

This example illustrates one approach to coding word list errors (in this case, using dictionary pronunciation symbols). Most teachers and reading specialists use a more informal approach. Whatever coding scheme is used with word lists, the pronunciation of the reader should be clear.

Miscue Coding Key

Passage Coding Example

Comprehension Coding KeyPartial credit (½ pt) is also sometimes awarded.

Melissa Gordon IRI

Levels,Graphs, Miscues,

Interpretation,& Instruction

Melissa Gordon IRI Interpretation

Melissa Gordon IRI Interpretation

Melissa Gordon IRI Interpretation

Melissa Gordon IRI Interpretation

IRI Diagnostic Analysis

Can you …

1. Generate hypotheses about relative strengths and weaknesses in word recognition and comprehension ?

2. Recognize implausible hypotheses based on IRI data?

3. Justify a diagnostic analysis that is based on IRI data?

4. Relate hypotheses about reading levels and relative strengths and weaknesses based on IRI data?