Sentences with phrase «rigorous studies available»

(So far the most rigorous studies available on U.S. programs have focused on Spanish - English programs, the most common form of bilingual education.)

Not exact matches

As there are still no rigorous scientific studies in humans available, it may help to hear the wisdom of experts and individuals who are gaining increasing experience with low - carb ketogenic pregnancies and who are totally comfortable recommending it.

And when the rigorous evidence is available from randomized controlled trials, often the results are at odds with the findings of the observational studies,» explains Dr. JoAnn Manson, chief of preventive medicine at Brigham and Women's Hospital, professor of medicine at Harvard Medical School, and principal investigator of a large randomized trial known as VITAL (Vitamin D and Omega - 3 Trial).

The resources available for this study ($ 500,000, or roughly $ 8,000 per teacher) would certainly have been more than enough to perform a rigorous analysis of the performance of National Board teachers vis - à - vis unsuccessful candidates, using a random sample of the two groups and adjusting for students» socioeconomic status and previous achievement levels.

Unfortunately, for the vast majority of models, convincing evidence of their effectiveness from rigorous studies is not available.

Throughout the study group, the committee employed rigorous analysis of research and data on racial equity, using the best available evidence to guide its observations and recommendations.