Describe threats to external validity (for example, testing reactivity, interaction effects of selection and experimental variables, specificity of variables, reactive effects of experimental arrangements, and multiple-treatment interference, as appropriate to the study) and how they will be and/or were addressed
Describe threats to external validity (for example, testing reactivity, interaction effects of selection and experimental variables, specificity of variables, reactive effects of experimental arrangements, and multiple-treatment interference, as appropriate to the study) and how they will be and/or were addressed. Describe threats to internal validity (for example, history, maturation, testing, instrumentation, statistical regression, experimental mortality, and selection-maturation interaction, as appropriate to the study) and how they will be and/or were addressed. Describe any threats to construct or statistical conclusion validity. Ethical Procedures Agreements to gain access to participants or data (include actual documents in the IRB application). Describe the treatment of human participants including the following (include actual documents in the Institutional Review Board [IRB] application):
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