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. Author manuscript; available in PMC: 2017 Sep 1.
Published in final edited form as: J Expo Sci Environ Epidemiol. 2016 Sep 7;27(5):451–457. doi: 10.1038/jes.2016.52

Figure 3. Random Effects of School on PM2.5 and Black Carbon.

Figure 3

Left Panel: Plot of the predicted indoor PM2.5 levels by the outdoor source contribution. Each point represents a classroom measure; each line represents a school's linear prediction that incorporates its school-specific random intercept and random slope. Right Panel: Plot of the predicted indoor BC levels by the outdoor source contribution. Each point represents a classroom measure; each line represents a school's linear prediction that incorporates its school-specific random slope (random intercept not included due to little school-level variation).