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Levin, Joel R.; Ferron, John M.; Kratochwill, Thomas R. – Journal of School Psychology, 2012
In this four-investigation Monte Carlo simulation study, we examined the properties of nonparametric randomization and permutation statistical tests applied to single-case ABAB...AB and alternating treatment designs based on either systematically alternating or randomly determined phase assignments. Contrary to previous admonitions, when…
Descriptors: Intervention, Research Design, Nonparametric Statistics, School Psychology