Deck 31: Regression Analysis

Question 1

Regression models seek to understand the relationship between one or more independent variables and one dependent variable.
ED: "one or more"?

Answer 1

True

Question 2

A confounder may make the association between an exposure variable and an outcome variable appear more or less significant than it truly is.

Answer 2

True

Question 3

Which of the following uses regression models to examine causal patterns among variables, assuming a recursive model in which all causality is unidirectional?

A) Path analysis
B) Structural equation modeling
C) Survival analysis
D) Analysis of covariance

Answer 3

A

Question 4

Which of the following display cumulative survival rates in a study population?

A) Log-rank tests
B) Cox proportional hazards regression
C) Kaplan-Meier plots
D) Hazard ratios

Question 5

Which of the following examines the distribution of the durations of time that individuals in a study population experience from an initial time point until some well-defined event, which can be death, discharge from a hospital, or some other outcome?

A) Path analysis
B) Structural equation modeling
C) Survival analysis
D) Analysis of covariance