Diagnostic Evaluation of Articulation and Phonology

Overview

• Two separate record forms for Articulation and Phonology.
• Color-coded system:
  • Articulation: Pinkish-orangish
  • Phonology: Purple

Articulation Assessment

• Age Range: 3-0 to 8-11 years
• Manual Reference: Starts on page 25
• Procedure:
  • Using the stimulus book, present pictures to the child.
  • Record the child's responses and note any error patterns using IPA.
  • Focus on vowel errors, which are often overlooked.
  • Mark errors using a legend (e.g., check for correct, R for no response, D for dialectical variation).

Scoring

• Error Counting:
  • Count errors per category and column, e.g., total consonant and vowel errors.
• Articulation Error Score:
  • Calculated by summing errors.
  • Transcribe raw scores to scaled scores using Appendix C (page 129).
  • Check for phoneme stimulability for sounds not produced correctly.

Scaled Scores and Confidence Intervals

• Appendixes available for scaling raw scores and calculating confidence intervals.
• Consider gender and age to avoid common errors.
• Example: Raw score of 14 errors for a 3-3 year old boy yields a scaled score of 9.

Additional Calculations

• Percentile ranks, age equivalents, and severity ratings can be found in the appendices.
• Articulation Severity Rating:
  • Calculate the percentage of consonants, vowels, and phonemes correct.
  • Useful for report writing and goal setting.

Phonology Assessment

• Skip first 14 items if articulation test was administered.
• Manual sections and scoring are similar to articulation assessment.
• Procedure:
  • Follow purple-coded protocols.
  • Record errors and identify phonological processes.

Scoring

• Manual Reference: Begins on page 141
• Use similar scoring process as articulation assessment:
  • Raw score to scaled score conversion.
  • Percentile rank and age equivalent calculations.

Final Notes

• Ensure full assessment by administering both tests together.
• Always refer to the manual for unique cases or uncertainties.
• This overview does not cover every detail of the test procedure.

For further questions, you can refer to the manual or leave comments for additional guidance.