"An insightful and authoritative textbook¦whether you are a newcomer to statistics or a long-time practitioner, this work is valuable both as a textbook and as a reference manual." -Terry E. Duncan, Oregon State University
"The new edition...offers an expanded introduction...By providing real data sets and completely updated computer examples analyzed with programs like HLM, LISREL, and Mplus, the book offers readers the latest information, steps, and procedures needed to competently conduct multilevel analyses." -George A. Marcoulides, University of California-Riverside
"Heck and Thomas provide an introduction to multilevel modeling that is not just comprehensive but also eminently readable. The authors’ broad coverage of techniques leaves the reader ready to investigate complex research questions using the latest advancements in multilevel analysis, including mixture and latent transition analyses." -Laura Stapleton, University of Maryland Baltimore County