Why should full test sections not be divided, according to the guidelines?

Maintaining consistency in testing is paramount for ensuring that results are reliable and comparable across different assessments. When full test sections are divided, it can introduce discrepancies in how the test is administered and scored, potentially leading to variations in outcomes that are not representative of the actual abilities being measured. This consistency is crucial for the integrity of the testing process, as it allows for fair assessments that adhere to the established standards and norms.

This rationale holds that a unified test section can measure a construct more effectively than fragmented sections, which might not provide a complete picture of the candidate's understanding or skills. The integrity of comparisons made between test takers is therefore preserved when full sections are maintained, ensuring that every candidate is evaluated on the same basis.