Multiple Choice
A researcher tests whether the dosage level of some drugs (low,high) causes significant differences in health.To do this,the researcher randomly assigns rat subjects to receive a low or high dosage of the drug and records health-related measures in both groups.The type of method described is
A) experimental.
B) quasi-experimental.
C) correlation.
D) operational.
Correct Answer:
Verified
Correct Answer:
Verified
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