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Facilitating Growth Mixture Model Convergence in Preventive Interventions
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McNeish, Daniel; Peña, Armando; Vander Wyst, Kiley B.; Ayers, Stephanie L.; Olson, Micha L.; Shaibi, Gabriel Q. – Prevention Science, 2023
Growth mixture models (GMMs) are applied to intervention studies with repeated measures to explore heterogeneity in the intervention effect. However, traditional GMMs are known to be difficult to estimate, especially at sample sizes common in single-center interventions. Common strategies to coerce GMMs to converge involve post hoc adjustments to…
Descriptors: Prevention, Intervention, Growth Models, Program Effectiveness
Facilitating Growth Mixture Model Convergence in Preventive Interventions
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McNeish, Daniel; Peña, Armando; Vander Wyst, Kiley B.; Ayers, Stephanie L.; Olson, Micha L.; Shaibi, Gabriel Q. – Grantee Submission, 2021
Growth mixture models (GMMs) are applied to intervention studies with repeated measures to explore heterogeneity in the intervention effect. However, traditional GMMs are known to be difficult to estimate, especially at sample sizes common in single-center interventions. Common strategies to coerce GMMs to converge involve post-hoc adjustments to…
Descriptors: Prevention, Intervention, Growth Models, Program Effectiveness
Examining 24-Hour Activity and Sleep Behaviors and Related Determinants in Latino Adolescents and Young Adults with Obesity
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Soltero, Erica G.; Navabi, Neeku; Vander Wyst, Kiley B.; Hernandez, Edith; Castro, Felipe G.; Ayers, Stephanie L.; Mendez, Jenny; Shaibi, Gabriel Q. – Health Education & Behavior, 2022
Background: Few studies have examined 24-hour activity and sleep behaviors and their contribution to type 2 diabetes (T2D) in Latino adolescents and young adults with obesity. Aim: This study included quantitative data on T2D risk and 24-hour activity and sleep behaviors and qualitative data on individual, social, and environmental behavioral…
Descriptors: Adolescents, Physical Activity Level, Sleep, Hispanic Americans
Response Heterogeneity to Lifestyle Intervention among Latino Adolescents
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Peña, Armando; McNeish, Daniel; Ayers, Stephanie L.; Olson, Micah L.; Vander Wyst, Kiley B.; Williams, Allison N.; Shaibi, Gabriel Q. – Grantee Submission, 2020
Objective: To characterize the heterogeneity in response to lifestyle intervention among Latino adolescents with obesity. Methods: We conducted secondary data analysis of 90 Latino adolescents (age 15.4 ± 0.9 y, female 56.7%) with obesity (BMI% 98.1 ± 1.5%) that were enrolled in a 3 month lifestyle intervention and were followed for a year.…
Descriptors: Life Style, Intervention, Hispanic Americans, Adolescents
Twelve-Month Effects of the COPE Healthy Lifestyles TEEN Program on Overweight and Depressive Symptoms in High School Adolescents
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Melnyk, Bernadette M.; Jacobson, Diana; Kelly, Stephanie A.; Belyea, Michael J.; Shaibi, Gabriel Q.; Small, Leigh; O'Haver, Judith A.; Marsiglia, Flavio F. – Journal of School Health, 2015
Background: We evaluated the 12-month effects of the COPE (Creating Opportunities for Personal Empowerment) Healthy Lifestyles TEEN (Thinking, Emotions, Exercise, Nutrition) program versus an attention control program (Healthy Teens) on overweight/obesity and depressive symptoms in high school adolescents. Methods: A cluster randomized controlled…
Descriptors: Adolescents, Program Effectiveness, Life Style, Empowerment