Which of the following is usually a component of a major depressive episode?
a. Cognitive disturbance
b. Somatic/vegetative symptoms
c. Loss of interest/motivation
d. All of the above.
d
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The American Psychiatric Association has published a manual that is the most widely used classification system of psychological disorders. What is this manual called?
a. International Classification of Diseases (ICD) b. Physicians' Desk Reference (PDR) c. Psychodynamic Diagnostic Manual (PDM) d. Diagnostic and Statistical Manual of Mental Disorders (DSM)
A repeated-measures study and an independent-measures study both produced a t statistic with df = 10 . How many individuals participated in each study?
a. 12 for repeated-measures and 11 for independent-measures b. 12 for repeated-measures and 12 for independent-measures c. 11 for repeated-measures and 11 for independent-measures d. 11 for repeated-measures and 12 for independent-measures
According to Piaget, the development of reasoning is complete during the:
a. sensorimotor period of development b. preoperational period of development c. formal operational period of development d. concrete operational period of development
Dr. Jiminez investigated the influence of snacking on the onset of sleep in preschool children. One group of preschoolers ate a candy bar prior to bedtime, and the other group ate nothing. Time until the onset of sleep was recorded for each child. In this experiment, eating or not eating the snack is the __________ variable, and the time until the onset of sleep is the __________ variable.
A. independent; dependent B. dependent; independent C. experimental; control D. control; experimental