[Solved] What is the test statistic to test the significance of the slope in a regression equation? A)z-statistic B)F-statistic C)t-statistic D)π-statistic Psychosexual Stage: A Freudian concept involving a series of stages of childhood development, each marked by erotic attachment to a different body area. Freudian Theory: A psychological framework developed by Sigmund Freud that emphasizes unconscious processes and childhood experiences in shaping behavior. Psychoanalytic Approach: A theory and method of psychiatric treatment that emphasizes unconscious processes and conflicts as the sources of mental disorder and psychological distress. Psychopathology: The examination of mental illnesses focusing on their symptoms, origins, and therapeutic approaches.