Abstract ABSTRACT: Studies of the error-detection performance of audit procedures have found that three attention-directing procedures--client inquiry, expectations based on prior-year errors, and analytical review--signal almost half of the material errors detected. Further, the cost of performing such procedures appears to be relatively low, suggesting a positive cost/effectiveness relation. The primary purpose of the present study is to report detailed results of applying these attention-directing procedures when errors are identified. The sample consists of 186 engagements involving 368 proposed audit adjustments of a Big Eight audit firm. The results corroborate prior studies in that about half of the errors were signaled by the three attention-directing procedures and the simplest forms of these procedures (e.g., analytical reviews comparing current- and prior-year balances) identify many errors. Moreover, internal controls appear to condition the diagnosticity of audit procedures. When controls are strong, procedures involving internal accounting data are more diagnostic, while with weak controls evidence external to the accounting records signals relatively more errors.
Wright et al. (Sun,) studied this question.