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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/180841
Assessing Consistency in Single-Case Alternation Designs
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Consistency is one of the crucial single-case data aspects that are expected to be assessed visually, when evaluating the presence of an intervention effect. Complementarily to visual inspection, there have been recent proposals for quantifying the consistency of data patterns in similar phases and the consistency of effects for reversal, multiple-baseline, and changing criterion designs. The current text continues this line of research by focusing on alternation designs using block randomization. Specifically, three types of consistency are discussed: consistency of superiority of one condition over another, consistency of the average level across blocks, and consistency in the magnitude of the effect across blocks. The focus is put especially on the latter type of consistency, which is quantified on the basis of partitioning the variance, as attributed to the intervention, to the blocking factor or remaining as residual (including the interaction between the intervention and the blocks). Several illustrations with real and fictitious data are provided in order to make clear the meaning of the quantification proposed. Moreover, specific graphical representations are recommend for complementing the numerical assessment of consistency. A freely available user-friendly webpage is developed for implementing the proposal.
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MANOLOV, Rumen, et al. Assessing Consistency in Single-Case Alternation Designs. Behavior Modification. 2021. Vol. 45, num. 6, pags. 929-961. ISSN 0145-4455. [consulted: 17 of August of 2026]. Available at: https://hdl.handle.net/2445/180841