Description

Ages: 3-10

Testing Time: 2-3 minutes/phoneme

Qualifications: Level B

Goldman-Davis Articulation Probes (GDAP)

The GDAP is the first standardized dynamic assessment of speech production and stimulability. This innovative tool uses a unique 15-point cueing hierarchy that represents the scaffolding levels available to a child in producing a target sound. Rather than focusing only on the final product, the GDAP provides a more sensitive measure by assessing both the emergence of skills and the child’s responsiveness to cues.

A standardized decision matrix guides the progression of prompts, cues, and speech environment complexity. A score of 1 (best) indicates independent production of a sound in connected speech, while higher scores reflect greater support needed to elicit production in simpler contexts. This dynamic approach captures how children learn and respond, not just what they can produce.

The GDAP can be administered traditionally with paper and pencil or digitally via the ATP Online interface.

Test Content

The GDAP includes 49 items:

• 22 Initial Phonemes

• 21 Final Phonemes

• 3 Initial Blends

• 1 Final Blend

• 2 Multisyllabic Words

Sound Classes Assessed: Glides, Nasals, Stops, Velars, Stridents, Interdentals, Liquids

Each item is tested in up to three speech environments using vibrant, child-friendly images:

• Single Word

• Two-Word Sentence

• Connected Speech

Norms

The GDAP was normed on a representative sample of 880 children ages 3.0 through 10.11.

What’s Included

✔️ Examiner’s Manual
✔️ Test Plates
✔️ 25 Record Forms