About the Measure

Domains Language
Subscales Not examined
Target Construct Oral language: Expressive vocabulary
Description A measure of expressive vocabulary and word retrieval for Standard American English.
Test Authors Williams, K. T. (2007)
Publisher Pearson (2007)
Psychometry Not evaluated as no UK norms
Implementation Not evaluated as no UK norms

Implementation details

Respondent Not examined
Prior knowledge Required Not examined
Scoring Not examined
Time Not examined
Age 2 years and 6 months to 90 years

Psychometric details

Norm / Criterion referenced Norm referenced
Standardisation sample 4000
Reliability Not examined
Criterion validity Not examined
Construct validity Not examined
Concurrent validity Not examined