The answer from the given choices is "<span>human judgment." </span> Signal detection theory is anticipating how and when we distinguish the nearness of a faint stimulus in the midst of background stimulation. Accept there is no single outright edge and location depends mostly on a man's involvement, desires, inspiration, and level of weariness.
Signal detection theory suggests that differences in absolute thresholds between different people reflect human judgement.
Signal Detection is a theory that predicting how and when we detect the presence of a faint stimulus ("signal") amid background stimulation ("noise"). .It measures the ability to differentiate between these two different patterns.
