i am a medical student looking forward to venture in research. i have stumble upon alien terms that connected with the research design... like quasi controlled random trials, meta analysis, randomised controlled trials etc etc....
what are the different in each terms and does anyone know the full list of the research design exist on earth...
Can anyone give a list and definition for each of the research designs types?
This is a pretty broad question for yahoo answers.
A randomized controlled trial means that patients were randomly put into groups to receive either the drug (or intervention) or a placebo (looks like the drug, but is just sugar). Then the two groups are compared to one another to see how the drug (or whatever) affected the course of their disease.
A meta analysis is a study that looks at all the articles published on a particular topic, and breaks them down by how well they were done, and what their results showed. Then they make reccomendations based on that search and analysis. They aren't running a study on their own, merely examining the work of others critically.
A case-control study finds people who already have a specific problem of interest and looks back at their history to see what events in the past might have influenced their current condition.
A cross-sectional study, or observational study, takes a random sample of the population as it exists and just watches to see what happens. They also collect data along the way about medications, diet, exercise, etc. An example might be the Frammingham heart study.
A case series is not a study, merely a description of patients that a doctor has encountered that are interesting and might suggest a link between two things.
broken teeth
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