Term
| Two types of data collection |
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Definition
| randomized experiment and observational study |
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Term
| Randomized experiments can prove |
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Definition
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Term
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Definition
| randomized controlled double-blind experiment |
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Term
| Portacaval shunt studies (liver surgery) |
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Definition
| assignment to control group was not randomized |
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Term
| Did the the four therapy studies use historical controls |
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Definition
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Term
| What are historical controls |
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Definition
| patients treated the old way in the past |
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Term
| Trials with historical controls are |
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Definition
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Term
| randomized controlled experiments are good and minimize what |
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Definition
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Term
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Definition
| a third variable associated with exposure to disease (confusing factors) |
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Term
| observational studies establish what |
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Definition
| association, and can be misleading |
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Term
| which type of study is best: observational or randomized experiment |
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Definition
| randomized controlled experiment |
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Term
| observational study: Clofibrate trial (coronary drug project) |
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Definition
| randomized control double blind experiment- some patients didn’t take the medications to lower cholesterol |
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Term
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Definition
| association is not causastion |
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Term
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Definition
| presence of confounding factors (sexually transmitted disease) |
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Term
| Ultrasound and low birth rate |
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Definition
| only an observational study |
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Term
| Treatment Group is given the |
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Definition
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Term
| Control Group is given the |
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Definition
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Term
| What does comparing these two groups mean? |
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Definition
| The difference in the response is due to the treatment |
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Term
| Why is a placebo neutral and why should it resemble the treatment |
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Definition
| the response should be due to the treatment itself rather than the idea of the treatment |
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Term
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Definition
| neither the investigator or the subject know who is the treatment group and who is the control group |
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Term
| Does the investigator or the subject have the power to assign subjects in an observational study |
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Definition
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Term
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Definition
| one thing linked to another |
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Term
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Definition
| on overall outcome due to something for example exposure to disease |
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Term
| How good is observational studies |
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Definition
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Term
| The weakness of observational studies is |
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Definition
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