A research study in which different groups of people of different ages are compared to assess a particular variable is a __________ study

Which of the following statements about child sexual abuse is true?

A) Children with disabilities are abused less than their typically developing peers. B) Sexual abuse is committed against children of both sexes, but more often against girls. C) Most cases begin in middle childhood and are not reported until adulthood. D) Typically, the abuser is a nonrelative whom the child does not know very well.

Suppose Sabine, a six-month-old baby, fails to realize that her crib mobile continues to exist when she is not looking at it. Describe how Sabine's thinking on this issue might change as she progresses through the three stages of equilibration

What will be an ideal response?