A Blind Study Is When

question 24

Multiple Choice

A blind study is when

• A) researchers do not tell the subject what is being studied.
• B) the subject does not know whether he is getting the trial drug or a placebo.
• C) researchers give random test agents to the subject.
• D) the subject is given the trial drug at random times.

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Definitions:

Coefficient of Determination

A statistical measure, often denoted as R-squared, that represents the proportion of the variance for a dependent variable that's explained by an independent variable or variables in a regression model.

Linear Regression

A statistical method for modeling the relationship between a dependent variable and one or more independent variables using a linear equation.

Sum of Squares

A statistical measure that quantifies the total variability within a dataset, used in various statistical methods to analyze variance.

Correlation Coefficient

A numerical measure that indicates the extent to which two variables fluctuate together.