In the experiment by Mackworth (1948), a pointer moved in small jumps around a clock face. At intermittent intervals a target event occurred (a double jump of the pointer). What was the key result?
A) the target event was detected
B) the target event was not detected
C) it became easier to detect the target event over time
D) it became harder to detect the target event over time

Question

Quizplus · Accepted Answer

The key result of Mackworth's (1948) experiment was that it became harder to detect the target event over time, demonstrating a decline in vigilance or sustained attention.

In the Experiment by Mackworth (1948), a Pointer Moved in Small