This bestselling textbook is designed to help students understand parametric and nonparametric statistical methods so that they can tackle research problems successfully. By working through this book carefully and systematically, those who may not have a strong background in mathematics will gain a thorough grasp of the most widely used statistical methods in the social sciences.
3.1 Scales of measurement
Almost every page of this book is concerned with classifying, categorizing and quantifying individuals, objects, and events in order to examine relationships between them. Whether the objective is to record the verbal behaviour of adolescents, the height of newly born infants or the mortality ...