What do we call the variable an experimenter manipulates in order to determine its effects in an experiment?
a) controlled variable
b) dependent variable
c) extraneous variable
d) independent variable
ANS: d
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Eddie is eight years old and he often has temper tantrums, he is preoccupied with just a few toys, and he frequently repeats other people's words. It is MOST likely that Eddie has
a. depressive disorder. b. obsessive compulsive disorder. c. a learning disorder. d. autism.
A four-year-old girl sucks her thumb, a teenager binges on food, and an adult woman bites her fingernails. According to the Freudian theory of psychosexual development, all three are fixated at the ________ stage
a. oral b. anal c. phallic d. genital
Which of the following neurons are used to control muscle movement?
A. Sensory neurons B. Motor neurons C. Central neurons D. Peripheral neurons
If a 4 ½-year-old child is asked to draw a person, who is first standing upright and then has fallen down, the child is likely to draw the figure in the vertical position, and then the figure lying in the horizontal position
with no other pictures in between to demonstrate the person falling. This child would be demonstrating a lack of a) egocentric thought. b) intuitive thought. c) conservation. d) transformation.