When an auditor increases the assessed risks of material misstatement because certain control activities were determined to be ineffective, the auditor most likely would increase the
Extent of tests of details.
For a given audit risk, the acceptable detection risk is inversely related to the assessed risks of material misstatement. As the RMMs increase, the acceptable detection risk decreases, and the auditor requires more persuasive audit evidence. The auditor may (1) change the types of audit procedures and their combination, e.g., confirming the terms of a contract as well as inspecting it; (2) change the timing of substantive procedures, such as from an interim date to year end; or (3) change the extent of testing, such as by using a larger sample (AU-C 330 and AS No. 13).