You are being placed on a large piece of glass with a checkerboard-patterned platform underneath it. Your mother walks to the other side of this platform and calls for you to crawl to her. Many years later, you will discover that this was all part of an experiment to test your

a. visual acuity

In the 1950s, a famous experiment of rhesus monkeys reared with terry-cloth and wire-mesh "surrogate mothers" provided evidence that

A) attachment does not depend on hunger satisfaction. B) the infant's characteristics play the largest role in the relationship. C) sensitive caregiving is key to the development of a secure attachment pattern. D) attachment security in infancy is highly dependent on hunger satisfaction.

Goodness of fit is

A) only effective with sociable, securely attached children. B) rarely successful with difficult children. C) only effective with infants and toddlers. D) at the heart of infant–caregiver attachment.