Recent research using MRI suggests that the correlation between overall brain volume and IQ scores is approximately
a. .40.
b. -.40.
c. .20.
d. .60.
A
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In the fMRI study by Schwartz et al. (2003) of adolescents who had been classified as inhibited or uninhibited at age 2, __________.
A. inhibited individuals showed higher amygdala activity with novel than familiar faces, but uninhibited individuals showed the same level of activity with both types of faces B. inhibited individuals showed lower amygdala activity overall C. uninhibited individuals reacted more strongly to familiar stimuli than to novel stimuli D. no difference was seen due to the passage of so much time since infancy
To examine the impact of mood on prosocial behavior, Leila has participants watch a video intended to put them in either a positive or neutral mood before asking them to make a donation to a fictitious charity. What is the dependent variable in this study?
a. the participants' mood b. watching a happy or sad video c. the participants in the study d. whether or not a donation is made to charity
How did the Pygmalion effect come into play in the study conducted by Lenore and Jacobson?
What will be an ideal response?
An infant's production of vowel-like sounds that are present by 2 months are called
A) vegetative sounds. B) cooing. C) echolalia. D) true babbling.