The difference in epidemiological experimental studies compared with prospective cohort studies is
A: Research direction from outcome to causes
B: Established a control group
C: Interventions were implemented for the experimental group
D: Can be used for cause inference
E: Can be used to verify the cause of the hypothesis
A: Research direction from outcome to causes
B: Established a control group
C: Interventions were implemented for the experimental group
D: Can be used for cause inference
E: Can be used to verify the cause of the hypothesis
C
举一反三
- The biggest difference between Observational studies and Experimental<br/>research is( ) A: Intervention or treatment B: Prospective C: Random allocation D: Paralleled control group E: Blinding
- The difference between the control group and the experimental group was （） A: the training that parents received B: the age of the children C: the books that were read D: the number of the children
- What is the difference between experimental group and control group? A: Treatment B: Effect C: Sampling error D: Observation time E: Location
- 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
- The investigation direction of case-control studies is from exposure to outcome, prospectively.
内容
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Farmer's program has been criticized by the public because______. A: it causes damage to Net browsers B: it can break into Internet sites C: it can be used to cause disorder on all sites D: it can be used by people with evil intent
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Which expressions can be used in the Cause and effect writing?
- 2
Which example in second group can be used to match the heading in the first group?
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The baseline urinary function in the experimental group was the same as that in the control group. A: 正确 B: 错误
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Which of the following words can be used to express cause and effect？