A radar operator's hits and false alarms increase together when she becomes more lenient in calling signals. This shift reflects
- Acheck_circle
Response bias change without sensitivity (d') change
- B
A reduction in noise level
- C
An impossible outcome under SDT
- D
An improvement in sensory acuity
Explanation
SDT separates sensitivity (d') from criterion. Lenient criterion → more hits AND more false alarms; d' (signal/noise distance) unchanged.