Reviews of reviews can be wider ranging than reviews
of primary studies, covering a much greater variety of programmes.
In addition, several characteristics
of primary studies were identified as having effects.
Vanderbilt education researchers Matthew Springer, Lam Pham and Tuan Nguyen synthesized 44
primary studies on the impact of teacher pay incentives on student test scores.
Since we were especially interested in spin in favour of psychological therapies, we also investigated whether spin in review conclusions in favour of psychological therapies is associated with a disclosed COI, the inclusion of
own primary studies of the authors, or the researcher allegiance of the authors (table 2).
«This first presentation of
primary study results from the latest Phase 3 brivaracetam study is highly anticipated in the epilepsy community.
A meta - analysis of 85 independent effect sizes extracted from 46
primary studies involving a total of 36,793 learners indicated statistically significant positive effects of CT on mathematics achievement.
Provided primary study support and feedback for students, encompassing such subjects as languages, math, history, and science
Conclusions Non-financial COI, especially the inclusion of own
primary studies into reviews and researcher allegiance, are frequently seen in systematic reviews of psychological therapies and need more transparency and better management.
Means, Standard Deviations (SD), and Correlations
Among Primary Study Variables Across the Full Sample
By applying a multilevel approach to meta - analysis, there is no need for aggregating or selecting data, implying that all relevant effect sizes can be extracted
from primary studies (see also Assink et al. 2015; Assink and Wibbelink 2016).
Incorporation of assessments of risk of bias
of primary studies in systematic reviews of randomised trials: a cross-sectional study
We did not review
the primary studies included in each meta - analysis and can not comment on whether any of these studies were funded by organisations linked to the coffee industry.
In fact, one of
the primary studied benefits in this regard is the effect that cacao has on improving insulin resistance and downregulating inflammation caused by obesity (6).
Forty - three
primary studies on infant health outcomes, 43 primary studies on maternal health outcomes, and 29 systematic reviews or meta - analyses that covered approximately 400 individual studies were included in this review.
It was really
the primary study tool I used, and I easily passed the exam.
But as I followed the citation trail and actually started looking at
the primary studies that were cited in support of those conclusions — and thinking seriously about the methods that had been employed in the studies, the presuppositions behind them, and whether there were alternative evolutionary hypotheses for the things studied that were not in fact being ruled out by the experiments — I began to find that it wasn't all that convincing.
Although not initially planned as
a primary study objective, the good results encouraged researchers to additionally investigate how the treatment affected the symptoms of disease.
In fact, one of
the primary studied benefits in this regard is the effect that cacao has on improving insulin resistance and downregulating inflammation caused by obesity (6).
Lee and colleagues conducted an overview of 10 systematic reviews that evaluated the efficacy of aromatherapy (with and without massage) in reducing hypertension, depression, anxiety, pain relief, and symptoms of dementia.26 The authors determined that, though three of the reviews were of good methodological quality, many of
the primary studies they evaluated were not.
The prespecified outcomes of
the primary study were the percentage changes in FEV1 and forced vital capacity (FVC) during the treatment period.
It was while completing
her primary studies stateside that Saldana became involved with the Faces theater troupe, whose aim was to make a positive impact on teenage audiences by performing improvisational skits on such issues as substance abuse and sexuality.
Her primary study has been with Harvey Dinnerstein, for whom she was class assistant at the League.
The museum, now called the Burchfield - Penney Art Center, has become
his primary study center with the world's most comprehensive collection of his art and archives.
Her primary study focus was health promotion and the impact of the school environment on adolescent sexual behavior.
Several smaller projects have been developed from
the primary studies, including the development and implementation of an eating attitudes intervention program (Able To Eat) for early adolescent girls.
The primary studies conducted under the aegis of the Adolescent Study Program include the Cross-Sectional Adolescent Girls» Study, the Early Adolescence Study, the Late Adolescence Study, the Mother — Daughter Interactions Study, the Bone Density Study, and the Girls» Health and Development Project.
A larger project funded by the National Institute on Drug Abuse (NIDA) is
the primary study of these young women's longterm adjustment in areas such as drug abuse, criminal behavior, and romantic relationship functioning.
Indeed, the median number of studies included in Cochrane meta - analyses is three [20] and Cumming [19] indicates that meta - analysis is helpful even if only two
primary studies are available.
The results of this study, aggregating findings from 21
primary studies, indicated clearly that attachment insecurity / disorganization is associated with CD / ODD.
The primary study aim was to describe patient satisfaction with abortion care in family medicine centers (FMCs).
In calculating each effect size, it was important that the direction of the effect (positive or negative) corresponded with the statistical data reported in
the primary study.
Moreover, conducting moderator analyses could result in artifactual findings if study characteristics that are tested as moderators would have been used as control variables in the multivariate models of
primary studies from which effect sizes are included in the meta - analysis.