In her detailed and down-to-earth style, Zina O'Leary sets out how to approach each stage of your research project; from choosing a research design and methodology to collecting and analysing data, then communicating your results - while showcasing best practice along the way.

The classic text in multilevel analysis, dealing with everything you need to know, has been hugely revised and added to and is supported by all the software. A must-have for modellers.