Titlebook: Credibility, Validity, and Assumptions in Program Evaluation Methodology; Apollo M. Nkwake Book 2023Latest edition The Editor(s) (if appli

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Credible Methodology,ng assumptions about their validity is a critical part of methodological credibility. Validity comes from the accuracy of methods in depicting reality and the conclusions and decisions based on this depiction. In this chapter, tenets of credible evaluative argument are discussed.

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Validity in Analysis, Interpretation, and Conclusions,nclusions and recommendations. Therefore, critical validity questions include:.The main forms of validity affected at this stage include statistical conclusion, internal validity, and external validity. This chapter discusses the meaning, preconditions, and assumptions of these validity types.

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be examined within the arguments that account of credible methodology in program evaluation. Examination of methodological assumptions needs to begin with a clear understanding of the types of assumptions that affect validity and at what points in the evaluation process these assumptions most commonly emerge.

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