Which statement about the CPA exam is incorrect?

The statement concerning the number of parts on the CPA exam is indeed correct. The CPA exam consists of four main parts: Auditing and Attestation, Financial Accounting and Reporting, Regulation, and Business Environment and Concepts. Therefore, the assertion that the exam has only four parts is actually accurate, not incorrect.

Regarding the other statements, task-based simulations are indeed a part of the CPA exam format, making the claim that there are no longer any simulations on the exam incorrect. Additionally, once a candidate exits a testlet, they cannot return to it, which supports the validity of that statement. The use of a four-function pop-up calculator in simulations provides candidates with necessary tools for computation, which is an established feature of the exam.

This context helps clarify why the focus should be on the specific provisions of the CPA exam and what aspects may have changed or remained significant in its structure.