Example 2 from Hedges, Pustejovsky, & Shadish (2013)

Data from a multiple baseline design conducted by Laski, Charlop, & Schreibman (1988). The variables are as follows:

  • case. Child identifier.

  • outcome. Frequency of child vocalization, as measured by a partial interval recording procedure with 60 ten-second intervals per session.

  • time. Measurement occasion.

  • treatment. Indicator for treatment phase.

Format

A data frame with 128 rows and 4 variables

Source

Laski, K. E., Charlop, M. H., & Schreibman, L. (1988). Training parents to use the natural language paradigm to increase their autistic children's speech. Journal of Applied Behavior Analysis, 21(4), 391-400. doi:10.1901/jaba.1988.21-391

References

Hedges, L. V., Pustejovsky, J. E., & Shadish, W. R. (2013). A standardized mean difference effect size for multiple baseline designs across individuals. Research Synthesis Methods, 4(4), 324-341. doi:10.1002/jrsm.1086