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Photo Articulation Test - Third Edition (PAT-3) (About (Norm-referenced…
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
Quick and easy to administer
Pictures are colorful and engaging for target group
Quickly and accurately tests sound errors and in what position at the word level
Tests consonent and vowel phonemes in English -
93 speech items
Allows examination of spontaneous
and imitative speech production at word level
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
Standard Deviation = +/-15
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
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
Content sampling is high (items measure the same thing)
Scoring is reliable with different raters
Validity
Content Validity
Test sufficiently covers all sounds and positions
Criterion-Related Validity
Test correlates with established standard
Construct Validity
Scores correlate with increasing age
Scores differentiate between average and below-average children
Considerations
Does not test productions at the sentence/ conversation-level
Does not test stimulability
