Sentences with phrase «less rigorous studies»

Using simple statistics, without data about published research, Ioannidis argued that the results of large, randomized clinical trials — the gold standard of human research — were likely to be wrong 15 percent of the time and smaller, less rigorous studies are likely to fare even worse.

A well conducted randomized trial is more likely to produce correct results, but a less rigorous study might still satisfy a physician if the risks are low and its potential benefits are great, he says.

Promising Practices are also techniques that have a positive impact on students, but that also have some research data (from very rigorous to less rigorous study designs) to support their claims of effectiveness.

Not exact matches

Preclinical studies of vaccine candidates have typically shown post-infection virologic control, but protection against acquisition of infection has previously only been reported using less rigorous viral challenges.

Other studies have taken a less sanguine view of these achievement gains, arguing that they are misleading because states have made their assessment systems less rigorous over time.

To put it simply, multiculturalism has less to do with any rigorous study of other cultures than it does with ethnic, gender, racial, or other subgroup tension within the nations of the West, the United States in particular.

A rigorous study by David Deming of Harvard, for example, found that Head Start graduates were less likely to repeat grades or be diagnosed with a learning disability, and more likely to graduate from high school and attend college.»

While one case study by Sarah Fairbanks and colleagues in 2007 suggests that office referrals decreased following implementation of RTI, and teachers rated student misbehavior to be less intense and less frequent, few rigorous evaluations of RTI have been conducted.

Four recent rigorous studies — in the District of Columbia, Louisiana, Indiana, and Ohio — used different research designs and reached the same result: on average, students that use vouchers to attend private schools do less well on tests than similar students that do not attend private schools.

The challenge is expanding the students» excitement about native studies to all subjects while fighting the perception that the curriculum is less rigorous than in other public schools.

However, if the study consists of a survey or self - reported data, educational leaders should immediately recognize the study is likely to be less rigorous.

A handful of studies using less rigorous methodologies have had more mixed results, and the report does not address English / language arts.

Each of these studies is no less rigorous for the relevance it bears on the pressing problems of education in our time.

First, a caveat: Although we know a great deal from rigorous research about what distinguishes high - performing from low - performing schools, much less scientific study has been conducted to show how struggling schools become effective ones.

E3 Alliance's ground - breaking longitudinal study on elementary through middle school math pathways revealed that our most academically prepared low - income and minority students are less likely to enter rigorous math pathways than their peers.

In fact, the results are even less promising when, as the article's author, Lindsey Burke notes, it becomes clear the Department of Health and Human Services study used less rigorous standards when measuring data.

Programs such as Linked Learning, which according to its website, «integrates rigorous academics that meet college - ready standards with sequenced, high - quality career - technical education, work - based learning, and supports to help students stay on track,» have seen positive outcomes for students.51 A seven - year longitudinal study comparing students who participated in Linked Learning to those who did not showed that the program completers were less likely to drop out and more likely to graduate from high school.

At best, his work is an interesting pilot study — generating research questions for a more rigorous, less biased investigation.

The study analyzes data from randomized controlled trials and less rigorous evaluations to compare treatments, treated populations and findings across programs.

A lot of other studies use less rigorous methods.

In terms of how the design of a study might compromise the credibility of its findings, it is important to note that effect sizes of parent support programs tend to be consistently higher for those studies using less rigorous designs (e.g. pre-post studies without control groups) and consistently lower for randomized studies.19 Despite these caveats, there are emerging themes that characterize many successful programs.