这篇译文是美国托莱多大学威司马所著《教育研究法概论》中的一章。所据原本为匹库克出版公司一九八零年第三版,译时略有删节。本刊计划于第一、二、三期连续刊载该书抽样设计、调查设计、实验设计等三个重要章节,供读者在进行教育研究时参考。 This translation is a chapter in Introduction to Educational Research Law by Wissima, University of Toledo, USA. The original copy of the company was the third edition of the 1980 edition of Piccolo, which was slightly abridged. The magazine plans in the first, second and third consecutive publication of the book sampling design, survey design, experimental design, three important chapters for readers to carry out educational research reference.