A researcher conducts an experiment to determine whether moderate doses of St. John's Wort have any effect of memory for college students. For this study, what is the independent variable?
a. The amount of St. John's Wort given to each participant
b. The memory score for each participant
c. The group of college students
d. Cannot answer without more information
A
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Chemicals that retard behavior and thinking by either speeding up or slowing down nerve impulses are known as _______
a. stimulants b. depressants c. hallucinogens d. inhalants
What is the key physical change that leads to cardiovascular disease?
a) Build up of plaque in the coronary arteries b) Pain on the left-hand side of the chest Consider This: Atherosclerosis is caused by inflammation, which usually is protective. LO 3.3: Identify the effect of health on daily life due a specific diseases across the adult years c) Tingling in the left arm Consider This: Atherosclerosis is caused by inflammation, which usually is protective. LO 3.3: Identify the effect of health on daily life due a specific diseases across the adult years d) Decreased blood pressure Consider This: Atherosclerosis is caused by inflammation, which usually is protective. LO 3.3: Identify the effect of health on daily life due a specific diseases across the adult years