Bancroft, S. (2011). Behavioral variability in selection of play items: assessment, treatment, and generalization. ProQuest Dissertations & Theses. http://proquest.umi.com/pqdlink?did=2564634301&Fmt=7&clientI d=79356&RQT=309&VName=PQD
Bancroft, S. L., Thompson, R. H., Peters, L. C., Dozier, C. L., & Harper, A. M. (2016). Behavioral variability in the play of children with autism and their typically developing peers. Behavioral Interventions, 31(2), 107-119. doi:10.1002/bin.1438
Baruni, R. R., Rapp, J. T., Lipe, S. L., & Novotny, M. A. (2014). Using lag schedules to increase toy play variability for children with intellectual disabilities. Behavioral Interventions, 29(1), 21-35. doi:10.1002/bin.1377
Bodfish, J. W., Symons, F. J., Parker, D. E., & Lewis, M. H. (2000). Varieties of repetitive behavior in autism: Comparisons to mental retardation. Journal of autism and developmental disorders, 30(3), 237-243. https://doi.org/10.1023/A:1005596502855
Lang, R., Machalicek, W., Rispoli, M., O’Reilly, M., Sigafoos, J., Lancioni, G., (…) & Didden, R. (2014). Play skills taught via behavioral intervention generalize, maintain, and persist in the absence of socially mediated reinforcement in children with autism. Research in Autism Spectrum Disorders, 8(7), 860-872. https://doi.org/10.1016/j.rasd.2014.04.007
Murray, C., & Healy, O. (2013). Increasing response variability in children with autism spectrum disorder using lag schedules of reinforcement. Research in Autism Spectrum Disorders, 7(11), 1481-1488. https://doi.org/10.1016/j.rasd.2013.08.004
Napolitano, D. A., Smith, T., Zarcone, J. R., Goodkin, K., & McAdam, D. B. (2010). Increasing response diversity in children with autism. Journal of Applied Behavior Analysis, 43(2), 265-271. doi:10.1901/jaba.2010.43-265
Neuringer, A. (2002). Operant variability: Evidence, functions, and theory. Psychonomic Bulletin & Review, 9, 672-705.
Wetherby, A. M., Woods, J., Allen, L., Cleary, J., Dickinson, H., & Lord, C. (2004). Early indicators of autism spectrum disorders in the second year of life. Journal of autism and developmental disorders, 34(5), 473-493. https://doi.org/10.1007/s10803-004-2544-y
Wolfe, K., Slocum, T. A., & Kunnavatana, S. S. (2014). Promoting behavioral variability in individuals with autism spectrum disorders: A literature review. Focus on Autism and Other Developmental Disabilities, 29(3), 180-190. https://doi.org/10.1177/1088357614525661