Sample Size for Measuring Grammaticality in Preschool Children from Picture Elicited Language Samples
Purpose: The purpose of this study was to investigate whether a shorter language sample elicited with fewer pictures (i.e., 7) would yield a percent grammatical utterances (PGU) score similar to that computed from a longer language sample elicited with 15 pictures for 3-year-old children. Method: Language samples were elicited by asking forty 3-year-old children with varying language skills to talk about pictures in response to prompts. PGU scores were computed for each of two 7-picture sets and for the full set of 15 pictures.Results: PGU scores for the two 7-picture sets did not differ significantly from, and were highly correlated with, PGU scores for the full set and with each other. Agreement for making pass–fail decisions between each 7-picture set and the full set and between the two 7-picture sets ranged from 80% to 100%. Conclusion: The current study suggests that the PGU measure is robust enough that it can be computed on the basis of 7, at least in 3-year-old children whose language samples were elicited using similar procedures.
MSU Digital Commons Citation
Eisenberg, Sarita and Guo, Ling Yu, "Sample Size for Measuring Grammaticality in Preschool Children from Picture Elicited Language Samples" (2015). Department of Communication Sciences and Disorders Faculty Scholarship and Creative Works. 97.