Studies Where One Group Gets an Experimental Drug and Another

question 16

Multiple Choice

Studies where one group gets an experimental drug and another gets a placebo are called ______.

• A)randomized clinical trials
• B)quasi-experimental studies
• C)correlational studies
• D)covariance studies

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Definitions:

Variables

Elements, features, or factors that can be changed and measured in an experiment to determine their effects.

Main Effect

In analysis of variance, when a factor or an independent variable has a significant effect upon the outcome variable.

ANOVA

Short for Analysis of Variance, a set of statistical techniques used to compare the means of three or more samples.

Factor

An element that contributes to a particular result or situation, often used as a variable in experiments and statistical analysis.