Were the Harry Harlow and Ainsworth experiments unethical?

Answer 1

The experiments completed by Harry Harlow, particularly those late in his career, would unlikely to be permitted today. His treatment of experimental animals has been widely criticized. For example, baby monkeys were left alone in darkness for up to six weeks or repetitively separated from their peers and isolated in a chamber called "the pit of despair." Current ethical standards would not permit this.

Ainsworth, on the other hand, is probably best known for the "Strange Situation" experiment conducted with mothers and small children. This involved separating a mother and child in a naturalistic manner and observing the child's response. The difference between Ainsworth and Harlow is that Ainsworth replicated experiences that would not be unusual in the life of a small child. Any distress was short-term. Techniques she developed continue to be used today. Her procedures would not likely be considered unethical.