The regression line is like a mean in that it maximizes the sum of squared deviations about it.

Baby Andre accidentally knocks a toy hung on his crib. Over the next several days, Andre tries to repeat this effect, gradually forming a "hitting" scheme. In Piaget's theory, this is an example of a

A) reflexive scheme. B) primary circular reaction. C) secondary circular reaction. D) tertiary circular reaction.

Weakened pelvic floor muscles can lead to all of the following symptoms EXCEPT

a. lack of sexual sensitivity b. loss of bladder control after childbirth c. vaginal dryness d. inhibited orgasm response