One of the Most Common Causes of Mental Retardation in the United

question 75

Multiple Choice

One of the most common causes of mental retardation in the United States is

• A) congenital rubella syndrome.
• B) cocaine addiction.
• C) fetal alcohol syndrome.
• D) use of thalidomide by pregnant women.
• E) use of tetracycline by pregnant women.

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Definitions:

Quantitative Predictor Variables

Variables that can be quantified and measured and are used to predict outcomes in statistical analyses.

Indicator Variables

Variables used in statistical models that take the value of 1 if a certain condition is met and 0 otherwise, often used to represent categorical data.

Regression Model

A statistical model used to estimate the relationship between a dependent variable and one or more independent variables.

Stepwise Regression

A method of regression analysis in which the choice of predictive variables is carried out by an automatic procedure.