applied researchindependent variabledependent variableinternal validityexperimental controlFunctional Relationevidence-based practiceReliabilitythreats to internal validityNomotheticIdiographicValidityBaseline LogicHistoryMaturationTestingInstrumentationProcedural InfidelityattritionAttrition biassampling
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bias
multiple treatment interference
instability
Cyclical Variability
regression to the mean
Adaptation
Hawthorne effect
instructional review board
respect for persons
Beneficence
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