Threats to internal validity include:History:MaturationTestingInstrumentationProcedural InfidelityAttritionMultiple Treatment InterferenceCyclical VariabilitySequential confounding:The hypothesis that states that
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there is no significant difference between samples is:
Amanda is an RBT at an ABA clinic. She is working with her client, Jerrell, to decrease aggressive behaviors (i.e., biting others). She has collected data for the frequency of Jerrell's bites for three weeks. Calculate the mean, median,
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