Monkeys who have been extremely deprived as infants can be rehabilitated to normal functioning within a well-functioning social group and will be behaviorally indistinguishable from the others. Nevertheless, when experiencing the stress of being caged for testing, they show their uniquely characteristic stereotypies from the deprived infant period. This illustrates what developmental principle? Group of answer choices development is orderly development is random development is directional development is predictable development is cumulative

This illustrates the developmental principle that:

E. development is cumulative

Explanation:

Even thought he monkeys were rehabilitated, their past experience and the feelings associated with it haven't ceased to exist. Development is nothing but an accumulation of events and their consequential influences over us. That means present moments build upon past moments. And, depending on what we are experiencing at the present, we may return to a past moment that is somehow being reminded to us. Our behaviors may become more childish or simply strange, because this current event has triggered the emotions of an earlier event. That is precisely what was observed in those monkeys. Though rehabilitated, they would return to their anxious behavior when caged for testing, since it reminded them of the childhood they were forced to spend deprived of love and care.

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