Concurrent and Construct Validity of Oral Language Measures With School-Age Children With Specific Language Impairment

Purpose This study investigated the psychometric properties of 2 oral language measures that are commonly used for diagnostic purposes with school-age children who have language impairments. Method Two hundred sixteen children with specific language impairment were assessed with the Test of Language Development—Primary, Third Edition (TOLD–P:3; Newcomer & Hammill, 1997) and the Comprehensive Assessment of Spoken Language (CASL; Carrow-Woolfolk, 1999) within a 3-month period. The concurrent and construct validities of these 2 published tests were explored through correlation analysis and principle-component factor analysis. Results The TOLD–P:3 Spoken Language Quotient and CASL Core Composite scores were found to have an intertest correlation value of r = .596 within this sample, and a paired samples t test revealed a statistically significant difference between these scores. Principle-component factor analyses revealed a 2-factor structure solution for the TOLD–P:3, whereas data from the CASL supported a ...