Several periods of development do not have clear biological boundaries. Rather, their limits are

A psychologist describes a patient as showing certain cognitive symptoms associated with depressive reactions. Which patient is being described?

a. Rachel, who is apathetic, anxious, and socially withdrawn b. Megan, who has a negative view of herself, her present experiences, and her future expectations c. Kate, who is crying, easily fatigued, and moves very slowly d. Wendy, who has physiological impairments in her nervous system, gastrointestinal system, and immune system

The most important factor influencing resistance to extinction is the _____ of reinforcement

A) ?time-sensitivity B) ?schedule C) ?magnitude D) ?delay