3. A researcher decides to investigate the relationship between an exposure (X) and an outcome (Y). In order to do so, the researcher decides to collect information on a relevant variable Z that may play a role in the relationship between X and Y. Which of the following hypothetical scenarios describes interaction by the variable Z? A) Z is associated with an increase in both X and Y B) Z is associated with only the exposure C) Z is associated with only the outcome D) When Z is present, there is an increase in Y, and when Z is absent, there is a decrease in Y
3. A researcher decides to investigate the relationship between an exposure (X) and an outcome (Y). In order to do so, the researcher decides to collect information on a relevant variable Z that may play a role in the relationship between X and Y. Which of the following hypothetical scenarios describes interaction by the variable Z? A) Z is associated with an increase in both X and Y B) Z is associated with only the exposure C) Z is associated with only the outcome D) When Z is present, there is an increase in Y, and when Z is absent, there is a decrease in Y
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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
Transcribed Image Text:3. A researcher decides to investigate the relationship between an exposure (X) and an
outcome (Y). In order to do so, the researcher decides to collect information on a relevant
variable Z that may play a role in the relationship between X and Y. Which of the
following hypothetical scenarios describes interaction by the variable Z?
A) Z is associated with an increase in both X and Y
B) Z is associated with only the exposure
C) Z is associated with only the outcome
D) When Z is present, there is an increase in Y, and when Z is absent, there is a decrease in Y
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