In Brady,et al.'s (1958)experiments,"executive monkeys" could prevent shocks from being delivered to them and another ("helpless")monkey.Contrary to the original conclusions,it now appears that the "executives" died from ulcers because of:
A) a selection bias for how likely monkeys were to make the avoidance response.
B) the fact that shocks were randomly delivered.
C) an increase in stress induced by having control over the shocks.
D) stress induced by helpless monkeys on executives.

Question

Quizplus · Accepted Answer

The original study had a selection bias, as monkeys that were more likely to make avoidance responses were chosen as "executives," leading to higher stress levels and ulcers.

In Brady,et Al