Barbara Alexander Pan|Meredith L. Rowe|Elizabeth Spier|Catherine S. Tamis?LeMonda
Measuring productive vocabulary of toddlers in low-income families: concurrent and predictive validity of three sources of data
University of Chicago|New York University|New York University
study examined parental report source information toddlers productive vocabulary 105 lowincome families living either urban rural communities parental report using macarthur communicative development inventory short form cdi child age 2 0 compared concurrent spontaneous speech measures standardized language assessments utility source data predicting receptive vocabulary age 3 0 peabody picture vocabulary test evaluated relations language measures interest background variables maternal age education raceethnicity also considered results showed sample whole parental report moderately associated language measures age 2 0 accounted unique variance ppvt age 3 0 controlling child language skills derived standard cognitive assessment however predictive validity differed community stronger rural urban community implications significant differences background characteristics mothers two sites discussed