CAPTION REVIEW — fictional staff-only exercise
Not a recording, product test or learner study.

REFERENCE SCRIPT
This activity is optional. Do not submit it for a grade. The water sample starts at twenty degrees Celsius.

CAPTION A
This activity is optional. Submit it for a grade. The water sample starts at twenty degrees Celsius.

CAPTION B
This activity is optional. Do not submit it for a grade. The water sample starts at twenty degrees Fahrenheit.

Before reading the key: underline changed meaning and state whether each caption can be used.
KEY
A deletes the negation and reverses the submission instruction. B changes Celsius to Fahrenheit. Both fail. The reference script supplies corrected words, but does not verify audio timing, speaker identification, player controls or accessibility.

CURRENT DECISION
Retain reviewed text in the approved system. No learner pilot or accessibility benefit has been demonstrated. Ask the institution's teaching/accessibility/privacy teams about any further proposal.