Browsing by Author "Blood, Emily Alice"
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Effect of the Planet Health Intervention on Eating Disorder Symptoms in Massachusetts Middle Schools, 2005–2008
Austin, Sydney Bryn; Spadano-Gasbarro, Jennifer L.; Greaney, Mary L.; Blood, Emily A.; Hunt, Anne T.; Richmond, Tracy K.; Wang, Monica L.; Mezgebu, Solomon; Osganian, Stavroula Kalis; Peterson, Karen E. (Centers for Disease Control and Prevention, 2012)Introduction: The Planet Health obesity prevention curriculum has prevented purging and abuse of diet pills (disordered weight control behavior [DWCB]) in middle-school girls in randomized trials, but the effects of Planet ... -
Non-Linear Mixed Models in the Analysis of Mediated Longitudinal Data with Binary Outcomes
Blood, Emily Alice; Cheng, Debbie M (BioMed Central, 2012)Background: Structural equation models (SEMs) provide a general framework for analyzing mediated longitudinal data. However when interest is in the total effect (i.e. direct plus indirect) of a predictor on the binary ... -
Performance of Mixed Effects Models in the Analysis of Mediated Longitudinal Data
Blood, Emily Alice; Cabral, Howard; Heeren, Timothy; Cheng, Debbie M (BioMed Central, 2010)Backgroun: Linear mixed effects models (LMMs) are a common approach for analyzing longitudinal data in a variety of settings. Although LMMs may be applied to complex data structures, such as settings where mediators are ... -
Spatial Distribution of Cosmetic-Procedure Businesses in Two U.S. Cities: A Pilot Mapping and Validation Study
Austin, S. Bryn; Gordon, Allegra R.; Kennedy, Grace A.; Sonneville, Kendrin R.; Blossom, Jeffrey; Blood, Emily A. (MDPI, 2013)Cosmetic procedures have proliferated rapidly over the past few decades, with over $11 billion spent on cosmetic surgeries and other minimally invasive procedures and another $2.9 billion spent on U.V. indoor tanning in ... -
Three-Year Improvements in Weight Status and Weight-Related Behaviors in Middle School Students: The Healthy Choices Study
Peterson, Karen E.; Spadano-Gasbarro, Jennifer L.; Greaney, Mary L.; Austin, S. Bryn; Mezgebu, Solomon; Hunt, Anne T.; Blood, Emily A.; Horan, Chrissy; Feldman, Henry A.; Osganian, Stavroula K.; Bettencourt, Maria F.; Richmond, Tracy K. (Public Library of Science, 2015)Introduction: Few dissemination evaluations exist to document the effectiveness of evidence-based childhood obesity interventions outside the research setting. Objective: Evaluate Healthy Choices (HC), a multi-component ... -
The Use of Mixed Models for the Analysis of Mediated Data with Time-Dependent Predictors
Blood, Emily Alice; Cheng, Debbie M. (Hindawi Publishing Corporation, 2011)Linear mixed models (LMMs) are frequently used to analyze longitudinal data. Although these models can be used to evaluate mediation, they do not directly model causal pathways. Structural equation models (SEMs) are an ...