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Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Observational_studies — Please support Wikipedia.
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Observational Studies.mp4

Observational Study vs Experiment

What's the difference between an observational study and an experiment?

AP Statistics -- Experiments, Observational Studies, and Drawing Conclusions

A midterm review on Experiments, Observational Studies, and Drawing Conclusions.

AP Statistics: Observational Studies

This video briefly describes what an observational study is and goes over a few examples.

Cohort Study and Other Observational Studies


Elementary Statistics: Observational Studies Versus Designed Experiments

Observational Studies Versus Designed Experiments.

The strengths and weaknesses of observational studies

Gathering Data-Observational Studies

This lesson covers the different methods of gathering data using observational studies.

USMLE STATISTICS PEARL: Different types of observational studies ( Statistics)

Prepare for USMLE,UK,CANADIAN,AUSTRALIAN, NURSING & OTHER MEDICAL BOARD examinations around the globe with us. Understand the basics, concepts and how to ans...

Observational Studies and Experiments

I created this video with the YouTube Video Editor (http://www.youtube.com/editor)

28300 videos foundNext > 

365 news items

Doctors Lounge
Mon, 25 Aug 2014 09:52:30 -0700

In multicenter observational studies, bias from variability in treatment selection between clinical centers can be reduced by matching recalibrated propensity scores within clinical centers, according to a study published online Aug. 12 in Circulation: ...
Reuters UK
Thu, 28 Aug 2014 11:45:00 -0700

NEW YORK (Reuters Health) – Drinking alcohol has been tied in the past to a higher risk of high blood pressure, but in a new analysis of past studies, researchers found that a drink or two a day seemed to protect even those with hypertension from heart ...
SYS-CON Media (press release)
Thu, 28 Aug 2014 08:56:15 -0700

Based on observational studies that suggest weight maintenance or limited weight gain may result in better pregnancy outcomes, the Healthy Moms study advises obese women to maintain their weight during pregnancy. "Most women in our intervention did ...

Laboratory Equipment

Laboratory Equipment
Thu, 28 Aug 2014 04:03:45 -0700

With colleagues at the Telethon Kids Institute, we decided to investigate further by doing our own systematic review and meta-analysis on observational studies that had reported food sources of saturated fat and see if different foods had different ...
The Conversation UK
Thu, 28 Aug 2014 09:41:15 -0700

... to eat more calories and larger volumes of food at mealtimes tend to seek out buffets. Confounding factors like this are always present in observational studies, and prevent us from drawing conclusions about whether one thing can be said to cause ...


Mon, 11 Aug 2014 13:15:00 -0700

Many of the previous positive results showing a beneficial effect come from observational studies conducted in women who have already had breast cancer and were using an adjuvant bisphosphonate to protect their bones while on treatment to prevent ...
Tue, 26 Aug 2014 00:53:57 -0700

As in other observational studies, the researchers found that increased levels of vitamin D were associated with decreased systolic blood pressures (β per 10% change −0.12 mmHg, 95% CI −0.20 to −0.04; P = 0.003) and a reduced risk of hypertension (OR ...


Thu, 28 Aug 2014 08:22:30 -0700

Limited data suggest some effectiveness with the use of oral tacrolimus, although not for complete closure of the fistulae. However, this is an option when attempting to avoid a surgical stoma. Observational studies on the use of cyclosporine report ...

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