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Direct linkFatih Unlu; Douglas Lee Lauen; Sarah Crittenden Fuller; Tiffany Berglund; Elc Estrera – Grantee Submission, 2021
Do quasi-experimental (QE) studies conducted with baseline covariates that are typically available in the longitudinal administrative state databases yield unbiased effect estimates? This paper conducts a within-study comparison (WSC) study that compares experimental impacts of early college high school (ECHS) attendance with QE impacts drawn from…
Descriptors: Quasiexperimental Design, Longitudinal Studies, Databases, Statistical Bias
Fatih Unlu; Douglas Lee Lauen; Sarah Crittenden Fuller; Tiffany Berglund; Elc Estrera – Journal of Policy Analysis and Management, 2021
Do quasi-experimental (QE) studies conducted with baseline covariates that are typically available in the longitudinal administrative state databases yield unbiased effect estimates? This paper conducts a within-study comparison (WSC) study that compares experimental impacts of early college high school (ECHS) attendance with QE impacts drawn from…
Descriptors: Quasiexperimental Design, Longitudinal Studies, Databases, Statistical Bias
Yli-Piipari, S.; Layne, T.; McCollins, T.; Knox, T. – JTRM in Kinesiology, 2016
The aim of the study was to examine the effect of a 4-week classroom physical activity break intervention on middle school students' health-related physical fitness. The study was a randomized controlled trial with students assigned to the experiment and control conditions. A convenience sample comprised 94 adolescents (experiment group n = 52;…
Descriptors: Middle School Students, Physical Activity Level, Intervention, Physical Fitness
