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ABSTRACT: Does the value of audit evidence depend on whether it was collectedusing fixed or sequential sampling? Opposing normative views are held by the two mainschools of statistical theory: Bayesians say no, frequentist statisticians say yes. We testempirically how using fixed versus sequential sampling plans influences the subse-quent evaluation of audit evidence. In our experiments, students and practicing auditorsassess the strength of evidence obtained using different sampling plans.Audit evidence obtained from a fixed sampling plan is invariably assessed as stron-ger, consistent with frequentist, but not Bayesian, theory. We test for, and rule out, analternative explanation for this finding. We also provide qualitative data on the reason-ing behind auditors’ observed preference for fixed sampling. Although sequential sam-pling might in fact increase audit efficiency, our findings suggest that this benefit wouldlikely be negated by subsequent unfavorable assessment of audit evidence from asequential plan.
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