From the late twos and into the mid-threes, the number of ways children combine words and phrases to form sentences __________ each month

Of the variables listed below, which of them is the MOST easily manipulated in an

experiment? a. Intelligence b. Genetic history c. Income d. Behavior e. Social class

According to the research on ethnicity and sex education,

a. Black mothers are typically more comfortable discussing sexuality than Latina or European American mothers. b. both Black and Latina mothers are usually more comfortable than European American mothers when they talk about sexuality. c. European American mothers are the usually the most comfortable about speaking about sexuality. d. no ethnic differences have yet been identified with respect to discussing sexuality with children.