Data from a Repeated acquisition single-case experimental design evaluating vocabulary knowledge using an expressive definition task. The variables are as follows:

  • observation. Identifier for participant

  • Book.Book used for evaluation.

  • Pre. Pre-intervention score on the expressive definition task.

  • Post. Post-intervention score on the expressive definition task.

Format

A data frame with 153 rows and 4 variables

Source

Peters-Sanders, L., Kelley, E., Haring, C., Madsen, K., Soto, X., Seven, Y., Hull, K., & Goldstein, H. (2020). Moving forward four words at a time: Effects of a supplemental preschool vocabulary. Language, Speech, and Hearing Services in Schools, 51, 165-175. doi:10.1044/2019_LSHSS-19-00029