Suspected causal factors that are manipulated by researchers in an experiment are called
dependent variables.
Indicate whether the statement is true or false
F
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Which of the following 15-year-olds is LEAST LIKELY to drink alcohol?
a. Tony, who is experiencing a lot of family problems b. Jeannie, whose mother and father are uninvolved in her life c. Larry, whose friends all drink when they get together d. Barbara, whose parents sometimes drink small amounts with meals
The information-carrying cells of the nervous system are called ____
a. ?neurons b. ?glia cells c. hormones d. ?glands
Studies comparing breast-feeding with bottle-feeding show that
breast-fed babies have fewer allergies and stomachaches. breast-feeding is recommended for all mothers and babies. scientific improvements make bottle-feeding a better choice. breast-feeding should stop when the baby gets the first tooth.
Siblings spend about how much time interacting with one another compared with their parents?
a. about the same amount c. less b. more d. sometimes more and sometimes less