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设计【形容词】1. 狡猾的,有野心[阴谋]的; 2. 计划性的,有远见的; 【名词】设计(工作)


a strategy that directs a researcher in planning and implementing a study in a way that is most likely to achieve the intended goal. case study design an investigation strategy involving extensive exploration of a single unit of study, which may be a person, family, group, community, or institution, or a very small number of subjects who are examined intensively. The number of variables is usually very large. cohort design longitudinal design. cross-sectional design a research strategy in which one or more group(s) of subjects are studied at one given point in time. experimental design a research design that eliminates all factors that influence outcome except for the cause being studied (independent variable). All other factors are controlled by randomization, investigator-controlled manipulation of the independent variable, and control of the study situation by the investigator, including the use of control groups.

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