Placebos have been known to help

Fifteen-year-old Kadian lives with her mother, sister, and two brothers in a small apartment in the city. Her mother works full-time but still struggles; her yearly income is below the federal poverty line

According to research, Kadian will most likely A) have lower academic achievement. B) be at an increased risk for substance abuse. C) have a mother who uses power-assertion as a discipline tactic. D) received inadequate heath care if she or her siblings becomes sick.

In general, ABBA reverse counterbalancing is only useful when the order effects are

a. linear. b. nonlinear. c. curvilinear. d. studied within a between-subjects research design.