Examples of using Randomized controlled in English and their translations into Finnish
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They were running a randomized controlled experiment.
Randomized controlled experiments have four main ingredients.
At the strongest end of the continuum are randomized controlled experiments.
But, at their core, randomized controlled experiments have four main ingredients.
Although it might not be immediately apparent,a draft lottery has a critical similarity to a randomized controlled experiment.
Fair comparisons can come from either randomized controlled experiments or natural experiments.
Although it might not be immediately apparent,a draft lottery has a critical similarity to a randomized controlled experiment.
These were all randomized controlled tests, which contrasted Garcinia Cambogia against dummy tablets placebo.
Treatment related adverse reactions in phase 3 randomized controlled studies Investigations.
A randomized controlled trial of a parent-centered intervention in preventing substance use and HIV risk behaviors in Hispanic adolescents.
Then, in partnership with researchers, Opower ran randomized controlled experiments to assess the impact of the Home Energy Reports.
See Dehejia and Wahba(1999) for an example where matching methods were able to produce estimates similar to those from a randomized controlled experiment.
For example, rather than running a randomized controlled experiment, the researchers could have exploited a natural experiment.
In particular, the experiment of Schultz and colleagues doesn't really have a control group in the same way that randomized controlled experiments do.
Moving further away from randomized controlled experiments, sometimes there is not even an event in nature that we can use to approximate a natural experiment.
For example, everyone accepts that smoking causes cancer even thoughwe have never done a randomized controlled experiment that forces people to smoke.
One way to answer this question would be with a randomized controlled experiment where workers were randomly assigned to either receive training or not receive training.
Further, non-experimental approaches can be helpful if you want to take advantage of data that already exist in order to design a randomized controlled experiment.
Note that these are not randomized controlled trials done with human participants, and therefore, the results of these studies may not be directly applicable to human use.
Often natural experiments are the best way to estimate cause-and-effect relationships in settings where it is not ethical orpractical to run randomized controlled experiments.
In chapter 4, I will describe how randomized controlled experiments can help researchers make causal estimates, and here I will describe how researchers can take advantage of natural experiments, such as the draft lottery.
Chapters 1 and 2 of Freedman, Pisani, and Purves(2007)offer a clear introduction into the differences between experiments, controlled experiments, and randomized controlled experiments.
In many situations, the strongest way to estimate the causal effect of some treatment, such as job training,is to run a randomized controlled experiment where a researcher randomly delivers the treatment to some people and not others.
Chapters 1 and 2 of Freedman, Pisani, and Purves(2007) offer a clear introduction to the differences between experiments,controlled experiments, and randomized controlled experiments.
The clearest way to study peer effects on productivity would be a randomized controlled experiment where workers are randomly assigned to shifts with workers of different productivity levels and then resulting productivity is measured for everyone.
Without the control group, it would have been basically impossible to measure the effect of the Info+ Social treatment because it would have been a"perturb andobserve" experiment rather than a randomized controlled experiment.
In other words, with a randomized controlled experiment you can be sure that any differences in outcomes are caused by the intervention and not a confounder, a claim that I make precise in the Technical Appendix using the potential outcomes framework.
Without the control group it would have been basically impossible to measure the effect of the info+ social treatment because it would have been a"perturb andobserve" experiment rather than a randomized controlled experiment.
In the prospective randomized controlled cardiovascular outcomes study, investigator reported events of hypoglycemia were similar in patients receiving placebo(6.5%) and patients receiving alogliptin(6.7%) in addition to standard of care.
Tianeptine has been reported to be very effective for asthma. In August 1998,Dr. Fuad Lechin and colleagues at the Central University of Venezuela Institute of Experimental Medicine in Caracas published the results of a 52-week randomized controlled trial of asthmatic children; the children in the groups that received tianeptine had a sharp decrease in clinical rating and increased lung function.