A university chemistry lecture runs 1.5 hours for the semester. How many interpreters are recommended for the semester?

• A. Two interpreters
• B. One interpreter
• C. Three interpreters
• D. Four interpreters

Answer: (A)

Two interpreters are recommended because interpreting a 1.5-hour lecture requires fatigue management to keep signing accurate and clear. A single interpreter may become fatigued, which can affect pace, expression, and accuracy, potentially impacting the student’s access to the information. With two interpreters, they can take turns—one signs while the other rests briefly—so there’s continuous interpretation throughout the session. This rotation helps maintain quality and reduces the risk of missed material. Additional interpreters are not typically needed for a single class session unless there are extra needs, so this duration is best supported by two interpreters.