Groups are more influenced by competition than individuals are. This effect has been dubbed the ________________

Tolerance for a psychoactive substance refers to

a. withdrawal. b. psychological dependence. c. the ability to consume several drugs at the same time with limited adverse effects. d. requiring more of the substance to achieve the same effect that lower doses once achieved.

In social referencing

a. an infant has a preference for being with other people, rather than for being alone. b. infants use their parents' facial expressions to help them interpret unfamiliar situations. c. deep relaxation is associated with progressively more anxiety-producing situations. d. an infant has a set of expectations about parents' availability and responsivity.