Case context: A reviewer examines a poor audio clip from the volunteer training set. The clip has loud background noise, and the volunteer was far from the microphone. The volunteer did not speak quickly.

Question: Which categories should the reviewer mark, which category should remain unmarked, and what role can comments play?

Sample answer: The reviewer should mark “Loud background noise” and “Far from the microphone.” “User spoke quickly” should remain unmarked because that condition was not observed. Comments can record relevant observations about the clip.

Key points:

• Mark loud background noise.
• Mark far from the microphone.
• Do not mark user spoke quickly.
• Use comments for relevant observations.

Rubric: Full credit requires marking both observed categories, leaving the unobserved rapid-speech category unmarked, and describing comments as a place for relevant observations.