Treatment methods that survive experiments in which participants are assigned at random to a specific treatment or to a control treatment are called _____ _____

According to Brown (1998), self-esteem can serve as a measure of our sense of meaning in life. This is also known as _______

a. unconditional positive regard b. mastery c. self-concept d. self-control

Mental operations performed by children in the concrete operational stage (age 7-11) are limited to what they can

a. create themselves. b. think and reason. c. dream and fantasize. d. experience directly