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Trajectories of Sibling Relationship Quality: Understanding the Genetic and Environmental Mechanisms and Associations With Childhood Mental and Physical Health

Award Number: F31HD121427
ORGANIZATION: NATIONAL INSTITUTE OF CHILD HEALTH AND HUMAN DEVELOPMENT
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: FELLOWSHIP/SCHOLARSHIP/STUDENT LOANS
PERIOD OF PERFORMANCE START DATE: 07/01/2026
PERIOD OF PERFORMANCE END DATE: 06/30/2028

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Trajectories of Sibling Relationship Quality: Understanding the Genetic and Environmental Mechanisms and Associations With Childhood Mental and Physical Health - PROJECT SUMMARY/ABSTRACT Instances of childhood internalizing, externalizing, and chronic pain symptoms are common and increasing in prevalence. As rates increase, so does the urgency of finding developmentally appropriate ways to address these concerns. Sibling relationships are a prime candidate to consider because of their relevancy in childhood and because existing literature highlights the protective nature of warm sibling relationships for children's physical and mental health. Sibling relationships have also traditionally been understudied in psychological literature, so there is a clear need for research which broadens this field to more complex longitudinal research and genetically-informed research. There is also a need for more research which combines physical and mental health to gain a comprehensive understanding of child wellness. The proposed study is innovative in that it will be novel in examining sibling relationship trajectories in childhood using latent growth mixture modeling, exploring genetic and environmental contributions to sibling relationship quality longitudinally, and investigating the association between sibling relationship quality trajectories and child internalizing, externalizing, and chronic pain symptoms. Overall, the proposed study will provide important and developmentally relevant information needed to prevent mental and physical challenges in children. The proposed research will use data from the Arizona Twin Project, an ongoing longitudinal study of twins and their families in the state of Arizona. The sample is diverse in race and socioeconomic status and allows for the assessment of sibling relationship quality (i.e. sibling warmth and conflict) at eight years, nine years, 10 years, 11 years, and 13 years, and the assessment of internalizing, externalizing, and chronic pain symptoms at 13 years. My training plan is designed to build expertise in advanced statistical techniques, such as latent growth mixture modeling and genetically-informed research methodologies, to examine sibling relationship trajectories and their association with childhood internalizing, externalizing, and chronic pain symptoms. Under the guidance of my specialized team of mentors, I will expand my strong background in family dynamics to understand the associations with childhood mental and physical health, positioning me to make significant contributions to research and interventions that address these interconnected areas.


Issue Date FY	Funding FY	Legal Entity Name	Legal Entity Address	Legal Entity City	Legal Entity State	Legal Entity Zip Code	Legal Entity COUNTY	Legal Entity COUNTRY	Assistance Listing	Award Code	Budget Year	Action Date	Action Type	Action Amount

Issue Date FY: 2026 ( Subtotal = $50,114 )
2026	2026	ARIZONA STATE UNIVERSITY	1475 N SCOTTSDALE RD STE 200	SCOTTSDALE	AZ	85257	MARICOPA	USA	Child Health and Human Development Extramural Research	001	1	6/16/2026	NEW	$0
2026	2026	ARIZONA STATE UNIVERSITY	1475 N SCOTTSDALE RD STE 200	SCOTTSDALE	AZ	85257	MARICOPA	USA	Child Health and Human Development Extramural Research	000	1	6/16/2026	NEW	$50,114
														Subtotal = $50,114

Grand Total All Awards = $50,114

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Trajectories of Sibling Relationship Quality: Understanding the Genetic and Environmental Mechanisms and Associations With Childhood Mental and Physical Health

Award Number: F31HD121427

ORGANIZATION: NATIONAL INSTITUTE OF CHILD HEALTH AND HUMAN DEVELOPMENT

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

AWARD ACTIVITY TYPE: FELLOWSHIP/SCHOLARSHIP/STUDENT LOANS

PERIOD OF PERFORMANCE START DATE: 07/01/2026

PERIOD OF PERFORMANCE END DATE: 06/30/2028

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