Random assignment controls ______ in each group.
A. the dependent variable
B. the levels of the independent variable
C. individual differences
D. the likelihood of observing an effect
Answer: C
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Most research suggests that the drugs that are currently used during labor produce only minimal risks to the fetus and neonate.
Answer the following statement true (T) or false (F)
Neuron A says to Neuron B, "Boy, I think I've had long-term potentiation happen to me for that historical date, 1776." Neuron B asks, "So. What does that mean?" Neuron A replies:
A. "I've become so much more in touch with my neighbor neurons." B. "I will stop functioning if I hear that date again." C. "The historical date causes me to shed my myelin sheath." D. "I've become more likely to send inhibitory messages when I hear a similar piece of information."
You are afraid of tunnels. Your therapist first helps you to deeply relax and then asks you to imagine a distant tunnel. When you can stay relaxed while visualizing this image, the therapist then asks you to imagine nearing the entrance, and finally entering the tunnel. Eventually, when you can remain relaxed while imagining all of this, the therapist takes you through a short tunnel. This list
of increasingly fear-provoking situations is known as ____. a. ?assertiveness training b. ?stress-inoculation therapy c. ?a token economy program d. ?a desensitization hierarchy
In their explanation of apparent movement, Wundt and Helmholtz emphasized ____, though their descriptions were different.
a. learning b. genetics c. innate ideas d. psychophysical isomorphism