Sunday

March 29, 2015

March 29, 2015

Posted by **Jon** on Thursday, February 21, 2013 at 12:38am.

When groups of data are aggregated, an association can get stronger because of a confounding variable. That confounding variable is usually the number of observations in different groups of data.

When groups of data are combined, an association can get stronger because of a lurking variable. That lurking variable is usually the number of observations in the different groups of data.

When groups of data are separated, an association can get stronger because of a lurking variable. That lurking variable is usually the number of observations in the different groups of data.

When separate groups of data are combined, an association can reverse direction because of a lurking variable that was lost when the different groups of data were lumped together.

I was thinking option A

**Answer this Question**

**Related Questions**

Statistics - Which of the following is an accurate description of Simpson's ...

Statistics - Which of the following is an accurate description of Simpson's ...

scientific method - http://classweb.gmu.edu/biologyresources/writingguide/...

Statistics - A nutritionist wants to conduct a study to validate the efficacy of...

Statistics - Tuyns et al. (1977) carried out a case-control study of esophageal ...

epidemiology - Assessing Random Error, Confounding, and Effect Modification ...

MATH URGENT!!!! - An investigator was interested in studying the effect of ...

statistics - assume you have a data set from a normally distributed random ...

statistics - In a correlation study, we seek to determine; *if the IV cause an ...

Statistics - Classify the following variable as nominal, ordinal, discrete, or ...