The _____ hypothesis concludes that the independent variable has no effect, and the _____ hypothesis concludes that the independent variable has an effect
a. null; alternative
b. alternative; null
c. one-tailed; two-tailed
d. two-tailed; one-tailed
a
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Postpartum depression affects the mother but does not affect the infant.
Answer the following statement true (T) or false (F)
Which baby is most likely to be insecurely attached?
a. Isabelle, whose parents play with her frequently b. Maud, whose parents are very affectionate toward her c. Jessica, whose parents tend to not respond to her crying d. Holly, whose parents often express happiness toward her
One possible answer to a particular research question is what researchers call ______________
a hypothesis proof a law a research question
One surgical treatment for stroke, ___________________, is associated with an increased number of future strokes and the death rate following implantation is high
a. use of carotid stents b. carotid endarterectomy c. atherosclerosis d. sclerosis e. angioplasty