A usability test script is a structured document used by the moderator to ensure consistency across test sessions. It typically includes pre-session briefing text, pre- and post-session interview questions, and the specific usability tasks to be performed. However, it does not include answers to the test questions, as usability tests focus on observing user behavior and performance—not testing users’ knowledge. Providing answers would bias results and invalidate findings. Thus, option D is incorrect and the best choice.
[References:, , Usability.gov: Creating a Test Script, , Nielsen Norman Group: Usability Testing Tools and Documentation, , ISO 25062 – Guidelines for Usability Reporting, ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾, ]
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