Traits theorists believe that traits provide a hereditary readiness to behave in particular ways, or a biological __________

The need or desire that energizes and directs behavior toward a goal defines _____

a) motivation. b) persistence. c) intensity. d) assimilation.

The type of early language production in which the child uses many social words is called ________ style

a. referential c. productive b. receptive d. expressive