What degree of association between hostility and heart disease would allow researchers to conclude that one definitively causes the other?
A. a correlation of 1.00
B. a correlation of .50
C. a correlation of -.75
D. a correlation of -1.00
Answer: D
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Neurotranmitters exert their effects by
a. producing action potentials. b. inhibiting action potentials. c. attaching to postsynaptic receptor molecules. d. causing reactions in the presynaptic membrane. e. enhancing postsynaptic reuptake.
According to Freud, the period of full psychosexual development, marked by the attainment of mature adult sexuality is called the stage
Fill in the blank with correct word
About ___% of women in North America report frequent pain during intercourse.
a) 5 b) 10 c) 15 d) 20
Children with autism ________.
A. tend to have narrow and overly intense interests B. engage in more make-believe play than typically developing children C. have smaller-than-average brains D. show extremely rapid synaptic pruning