Selltiz, Wrightsman, and Cook's Research Methods in Social Relations

Résumé du livre

In this book four modes of designing research, experiments, quai experiments, surveys, and participant observation are introduced. Each is useful in a different setting and is best suited to answer a different type of question. Experiments are designed to answer questions about causes and effects. They require the experimenter to exercise control over what happens to whom. Experimenters randomly assign people or other units such as classes of students to different conditions and measure the effects of the treatment.