Data from a BAB design conducted by Carson, Gast, & Ayres (2008). The variables are as follows:

  • case Participant identifier

  • treatment Factor describing the treatment condition

  • phase Numeric describing the phase of the study design for each case

  • outcome Outcome scores

  • time Measurement occasion


A data frame with 47 rows and 5 variables


Carson, K. D., Gast, D. L., & Ayres, K. M. (2008). Effects of a photo activity schedule book on independent task changes by students with intellectual disabilities in community and school job sites. European Journal of Special Needs Education, 23, 269-279.