1. Purposes of Literature Review
– To avoid redundant research and try to make new
B. Sampling survey (抽样调查)
Careful probability sampling provides a group of respondents whose characteristics may be taken to reflect those of the larger population, and carefully constructed standardized questionnaires provide data in the same form from all respondents.
Prediction(预测)
For example, the goal of regression analysis is find out the relationship between two or more variables.
2. Types of research methods
Procedures of social research
Preparatory stage(准备阶段) Data collection stage (收集资料阶段) Analysis stage (分析阶段) Summary stage (总结阶段)
Chapter 2 research design
For example, a trend study that showed that Candidates A and B each had exactly half of the voters on September first and on October first as well could indicate that none of the electorate had changed voting plans, that all of the voters had changed their intentions, or something between. A panel study would eliminate this confusion by showing what kinds of voters switched from A to B and what kinds switched from B to A, as well as other facts.