Overall, infertility is influenced by age, genetic differences, and environmental factors such as lifestyle habits.

Generalizing from research reported in the text, you would expect that a shy child would be most likely to also be popular if that child were being raised in which of the following countries?

a. China b. the United States c. England d. Canada

Janelle pretends that a cup is a hat. Janelle grasps the concept of

A) egocentrism. B) dual representation. C) animistic thinking. D) irreversibility.