Dear Saul, The most commonly used mixed-effect models software in R, in the lme4 and nlme packages, use the Laird-Ware form of the model, which isn't explicitly hierarchical. That is, higher-level variables are simply invariant within groups and appear in the model formula in the same manner as individual-level variables. So there's no problem -- just specify the model as you normally would.
By the way, you're more likely to get responses about mixed models if you post to the R-sig-mixed-models list <https://stat.ethz.ch/mailman/listinfo/r-sig-mixed-models> rather than to the more general R-help list. I hope this helps, John ------------------------------------------------- John Fox, Professor Emeritus McMaster University Hamilton, Ontario, Canada Web: http::/socserv.mcmaster.ca/jfox > On Mar 3, 2019, at 5:19 AM, Saul Weaver <saul.weaver...@gmail.com> wrote: > > Hello, > > I have data with workers within departments. I am interested in testing the > effects of peers' satisfaction on employees' productivity. To assess peer > satisfaction, I calculate, for each employee, the average satisfaction of > the employees' peers within the department. In other words, I calculate the > average satisfaction in the department, while excluding the focal employee. > I'm not sure about the level of this variable, because on the one hand, it > is unique for each employee, but on the other hand, the values of this > variable across employees are not independent of each other. How would I > account for this issue in R? > > Thank you, > > S Weaver > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.