Luis watches his mother open two equal containers of milk and pour each container of milk into a glass. She pours one container of milk into a glass that is short and wide, while the other glass is tall and thin. Although both glasses contain the same amount of milk, Luis wants the tall, thin glass because he says it has "more milk.". Luis is
a. unable to demonstrate egocentrism.
b. unable to demonstrate object permanence.
c. developmentally delayed in his cognitive development.
d. unable to make a transformation.
D
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In a study using systematic/controlled measures of behavior, how is would an increase in internal validity occur?
What will be an ideal response?
Among others, a major purpose of the cerebellum is to
A. control all cerebral perception B. primarily control involuntary muscle control C. control autonomic action D. promote consistent and smoot action of muscles
Researchers have observed a correlation between reduced immune activity and scores on
A) ?the Wechsler Intelligence Scale. B) ?the Somatic Rating Scale. C) ?several occupational interest inventories. D) ?the Social Readjustment Rating Scale.
According to recent research, which of these increase risk-taking behavior in adolescents?
A. synaptic expansion and the thinning of white matter B. the neurotransmitters epinephrine and histamine C. synaptic pruning and the thinning of gray matter D. the neurotransmitters serotonin and dopamine