Anti-CCP Antibodies

question 1

Multiple Choice

Anti-CCP antibodies

• A)are seen in all cases of rheumatoid arthritis and in people with chronic infections
• B)are seen in about 70% of cases of rheumatoid arthritis and are rarely seen in others
• C)are seen in all cases of rheumatoid arthritis and are rarely seen in others
• D)are found only in patients with rheumatoid arthritis and patients with Lyme disease

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Definitions:

Multicollinearity

A situation in regression analysis where independent variables are highly correlated, potentially distorting the results of the analysis.

Independent Variables

Elements within a model or experiment that are deliberately changed or grouped to assess their effect on variables that depend on them.

Correlated

A measure of the relationship between two variables, indicating how the change in one can predict the change in the other.

Multicollinearity

A statistical phenomenon in which two or more predictor variables in a multiple regression model are highly correlated, leading to difficulties in distinguishing their individual effects on the dependent variable.