A type of study that does not allow the subjects or the experimenters to know who is in the control group is:
A) quasi-experimental.
B) cross-sectional.
C) double blind
D) single blind.
C
Health Professions
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Which of the following is NOT an example of commonplace toxic materials found in industrial and residential occupancies?
A. Sodium chloride B. Pesticides C. Herbicides D. Cleaning solvents
Health Professions
A secondary source of health care data is the patient's medical record
Indicate whether the statement is true or false
Health Professions