Photo Articulation Test - Third Edition
(PAT-3)

About

Norm-referenced test

Ages: 3;0 through 8;11

Testing Time: 10-15 minutes; no time limits;
can be completed in more than one session

How to Administer

Tester points to a photo and asks: "What's this?"

Tester records a '+' for a correct response


A '-' for an incorrect answer

Or an 'i' for a response to imitation

Prompts or supplemental words
may be given if child does not respond

Scoring

Mean = 100

Score is normed for age differences

Standardization

PAT-3 was standardized on 800 children residing in 24 states

Nationally-representative sample based on 1997 census data

Children with disabilities included (not specific about what disabilities)

Reliability

Test gives consistent results upon repeated administration

Standard Deviation = +/-15

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Content sampling is high (items measure the same thing)

Scoring is reliable with different raters

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Validity

Content Validity

Test sufficiently covers all sounds and positions

Criterion-Related Validity

Construct Validity

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Test correlates with established standard

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Scores correlate with increasing age

Scores differentiate between average and below-average children

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Quick and easy to administer

Pictures are colorful and engaging for target group

Considerations

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Does not test productions at the sentence/ conversation-level

Does not test stimulability

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Quickly and accurately tests sound errors and in what position at the word level

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Tests consonent and vowel phonemes in English -
93 speech items

Allows examination of spontaneous
and imitative speech production at word level

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Summary/response form records initial, medial, and final position for each sound as well as placement of error - tongue or lips.

Scores sound production and errors for consonants and vowels