Using simple and direct language, this concise text provides practical guidance on a wide range of modeling methods and techniques for use with quantitative data. It covers: * 2-level Multilevel Models * Structural Equation Modeling (SEM) * Longitudinal Modeling using multilevel and SEM techniques * Combining organizational and longitudinal models Part of The SAGE Quantitative Research Kit, this book will give you the know-how and confidence needed to succeed on your quantitative research journey.