Sources of Bias Can Be Reduced If Which of the Following

question 5

Multiple Choice

Sources of bias can be reduced if which of the following assumptions are met?

• A) Additvity / linearity
• B) Data are normally distributed
• C) Homogeneity of variance
• D) All of the above

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Definitions:

Dummy Variables

Binary variables created to represent categorical data in order to use such variables in regression analysis.

Nominal Variable

A type of categorical variable for which there is no inherent order or ranking among the categories.

Indicator Variables

Variables used in regression analysis that take on the value of 0 or 1 to indicate the absence or presence of a categorical effect that may be expected to shift the outcome.

Indicator Variable

A variable used in mathematical modeling and statistical analysis that takes on the value of 0 or 1 to indicate the absence or presence of a certain condition or feature.