SPSS 12 made simple

"This new edition is written with the same clarity that has made the book such a success in the past. There is also the same breadth of coverage. As in previous editions, the material is fully illustrated with screen snapshots of SPSS output, windows and dialog boxes. In addition, there is a wealth of advice for the experienced researcher, ensuring that the book will continue to prove invaluable to a wide range of users."--Jacket.