Renee Baillargeon has conducted a number of studies to examine infants' reactions to objects that are hidden from view. Infants as young as 4 months appear to be surprised when a toy car emerges from behind a screen when it should have been blocked. What is the basic purpose of her studies?
a. To detect dimensions of visual acuity in infants
b. To determine an infant's ability to track a moving object
c. To demonstrate that infants have a mental image of an object even when it is out of view d. To present information about infants sense of touch to soft objects
c
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The variable that we believe will affect the dependent variable is known as the ________ variable.
A. independent B. extraneous C. discrete D. confounding
Pedro has just come to realize that while his dad, Carlos, believes that the Mets are the best professional baseball team, his uncle Alex feels just as strongly that the Yankees are the best team. The realization that two people can have different opinions indicates that Pedro possesses
A. belief-psychology. B. preconventional morality. C. power assertion. D. joint attention.
A measurement that shows test-retest reliability
a. shows similar results when the test is broken down into subparts that are scored independently. b. produces similar results when different researchers make independent naturalistic observations. c. is associated with an operational definition that has construct validity. d. will produce similar results on repeated testing.
Which of the following types of maternal behavior was measured extensively in the
post-injection testing phase of this experiment? A) crouching over young B) licking young C) retrieval of young D) nest building