Experimental research is
A) a process involving one group of subjects that receives a specific treatment and a second group of subjects that does not receive the treatment.
B) an idea generated by scientists based on their observations.
C) a stepwise process used by scientists to evaluate different types of experiments.
D) a process that involves looking at factors in two or more groups of subjects to see if there is a relationship to certain outcomes.
A
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Cooking a food in liberal amounts of water is least likely to affect its content of
a. folate. b. thiamin. c. vitamin A. d. riboflavin.
Seth took part in a clinical trial in which he was given a month's supply of medication to treat his headaches. At the end of the month, he reported to his doctor that the pills had reduced both the frequency and intensity of his pain. Unknown to Seth or to his doctor was the fact that Seth had been given pills with no active ingredient. The phenomenon of improved symptoms that Seth experienced is commonly known as the
A. bias toward improvement. B. placebo effect. C. study participant bias. D. experimental result.
A patient with cirrhosis who develops changes in personality and motor function may be exhibiting early symptoms of _____
a. fatigue b. hepatic regression c. hepatitis d. hepatic encephalopathy e. senile dementia
A diet that provides neither too much nor too little of nutrients and other components of food such as fat and fiber is:
1.adequate. 2.balanced. 3.sufficient. 4.ample.