Which of the method using a group of individuals as a unit of observation and analysis?
A: Ecological study
B: Monitor
C: Cross-sectional study
D: Case analysis
E: Outbreak investigation
A: Ecological study
B: Monitor
C: Cross-sectional study
D: Case analysis
E: Outbreak investigation
举一反三
- 6.对数十例相思病例进行分析，以总结发现共同特征或问题，这属于 A: case report B: cross-sectional study C: ecological study D: follow-up study E: case series analysis
- Which statement is false about“a case series”? A: It is a controlled medical study B: It has a descriptive study design. C: It is not associated with extensive statistical analysis D: It could be either retrospective or prospective
- Which of the following is not a major approach to social work research?( ) A: Experimental method(实验法) B: Evaluation study method C: Case study method D: Normative study method(规范研究法)
- Which of the following items is not a method of economic evaluation? A: cost minimization analysis B: cost-benefit analysis C: cost- effectiveness analysis D: cost-utility analysis E: cost analysis
- Which of the followings are correct about difference-in-difference(DID) quasi-experiment study? A: time series data can be used for DID analysis B: panel data can be used for DID analysis C: DID analysis compares the changes over time in an outcome of the treatment group to changes over the same time period in the outcome of the control group. D: DID analysis is the changes over time in an outcome of the treatment group