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This free, one-hour webinar is part of our regular Craft of Statistical Analysis series. In it, we will introduce and demonstrate two of the core concepts of mixed modeling—the random intercept and the random slope. Most scientific fields now recognize the extraordinary usefulness of mixed models, but they’re a tough nut to crack for someone who didn’t receive training in their methodology. But it turns out that mixed models are actually an extension of linear models. If you have a good foundation in linear models, the extension to mixed models is more of a step than a leap. (Okay, a large step, but still). You’ll learn what random intercepts and slopes mean, what they do, and how to decide if one or both are needed. It’s the first step in understanding mixed modeling. Date: Friday, August 21, 2015 Time: 12pm EDT (New York time) Cost: Free Signup: Random Intercept & Random Slope Models <http://www.theanalysisfactor.com/cosa-random-intercept-random-slope-models/?utm_source=allstat&utm_medium=email&utm_campaign=cosa_aug2015_listserv> You may leave the list at any time by sending the command SIGNOFF allstat to [log in to unmask], leaving the subject line blank.