Sentences with phrase «matched comparison group»

[1] Dehejia and Wahba (1999) later demonstrated that non-experimental methods performed better when using propensity score methods to choose a more closely matched comparison group.

Instead of funding a national network of 10 regional education labs, suppose those funds were made available on a competitive basis to individual state agencies willing to help districts track the impacts of their own efforts, to identify matched comparison groups for their initiatives (using other students and schools in a state) and to generate reports on impacts.

Type of Study: Posttest with long - term follow - up and matched comparison group Number of Participants: 26

Type of Study: Matched comparison group design Number of Participants: 41 SafeCare participants, 41 Family Preservation participants

Objectives for future research in this area include: a) using data from representative, population - based samples, b) using well - matched comparison groups of non-fathers (to compare with fathers), c) longitudinal research extending both prior to and post the perinatal period, and d) acquiring data from both partners («dyad data»).

Teachers who use PBL — and who also have taken part in extended professional development — report more teaching and assessment of 21st - century skills, compared with a closely matched comparison group.

Study 1 Aber, Jones, and Brown (2003) used a short - term, longitudinal, quasi-experimental design with repeated measures, and matched comparison groups for their evaluation of the Resolving Conflict Creatively Program (RCCP).

Thirty - three percent of treated infants developed moderate BPD and none developed severe BPD, and 72 percent of a matched comparison group developed moderate or severe BPD.

By stimulating this region of the brain, the Alzheimer's subjects cognitive and daily functional abilities as a whole declined more slowly than Alzheimer's patients in a matched comparison group not being treated with DBS,» he said.

When random allocation isn't possible, the best approach is to establish a matched comparison group.

We also carried out the difference - in - differences analysis in these demographic measures to understand the changes in New Orleans relative to the matched comparison group of hurricane - affected districts, and then simulated the effect of changes in family background characteristics on test scores using data from the federal Early Childhood Longitudinal Study.

The results in reading outcomes were somewhat better for the voucher students under study, where they recovered by year three and outperformed the matched comparison group in year four (the year four estimate of 0.13 standard deviations was marginally statistically significant).

By year four, there was no statistically significant difference in math test scores between students who remained in private schools and the matched comparison group.

This rigorous analysis from the first year found that students who participated in this middle school STEM summer program in robotics on math achievement and student interest in STEM subjects and careers, which culminated in a city - wide tournament, had significantly higher school attendance the following year compared to a matched comparison group who did not attend summer school.

Researchers obtained achievement data for personalized learning students and a matched comparison group of students attending other schools serving similar populations, and also collected and analyzed data from site visits, interviews, and surveys to create a broad picture of the schools» efforts to implement personalized learning and the perceptions of teachers and students.

At age 4, a random sample of children from the original cohort who had been maltreated along with a matched comparison group of nonmaltreated children were selected.

Limitations of the study include a high attrition rate and lack of a matched comparison group.

A well - designed evaluation study (e.g., using a strong experimental design with a well - matched comparison group and adequate sample size) with more extensive measurement would be needed to provide stronger evidence of curriculum impact.

In addressing the deficits of past research, this study was designed to examine empirically the predictive validity of several familial and parental factors for longitudinal change in three specific parenting behaviors: acceptance, behavioral control, and psychological control within a sample of youth with SB, as well as a matched comparison group (CG) of typically developing youth (see Figure 1 for an overview of the model).

Trajectories of resilience over 25 years of individuals who as adolescents consulted for substance misuse and a matched comparison group.