About the Measure

Domains Language
Subscales No
Target Construct Oral Language: Receptive grammar.
Description Measures understanding of grammatical contrasts.
Test Authors Bishop, C.
Publisher Pearson (2003)
Psychometry
Implementation

Implementation details

Respondent Child
Prior knowledge Required Should be administered by someone experienced with in giving standardised tests
Scoring Clear and transparent
Time 10 to 20 minutes
Age 4 to 86 years and 11 months

Psychometric details

UK norms YES
Norm / Criterion referenced Norm referenced
Standardisation sample 792 from 4 to 16 and 70 adults
Reliability Internal consistency is reported for the TROG (r= .88) indicating a good level of reliability
Criterion validity Insufficient data in the public domain to evaluate
Construct validity TROG correlates with CELF 0.58
Concurrent validity Concepts and directions from CELF-3 (Semel, Wiig & Secord, 2000; r=.53) is reported, providing evidence of validity for the TROG. TROG is sensitive to children's communication problems