To eliminate any bias that subjects or researchers may have during an experiment, the scientists use
A. observational research.
B. a control group.
C. a double-blind placebo-controlled study.
D. a peer-reviewed journal.
ANS: C
You might also like to view...
Arteriosclerosis is a single class of cardiovascular disease
Indicate whether the statement is true or false
_____ is a fat-soluble vitamin that participates in growth, development, and reproduction.
a. Selenium b. Vitamin E c. Vitamin A d. Vitamin C
When performing an obesity evaluation, the disease risk profile takes into account family history, life- threatening diseases, and ____.?
A) ?body mass index B) ?socioeconomic factors C) ?waist circumference D) ?common risk factors for chronic diseases
The National School Lunch Program Meal Pattern is required to provide _____ of the DRIs based on the child's age or grade group.
A. one-fifth B. one-fourth C. one-third D. one-half E. two-thirds