Current Research Studies and Surveys
TITLE OF STUDY: Children of Twins and Their Twin Aunt or Uncle
INVESTIGATOR: Dr. Nancy L. Segal, Professor of Psychology and Director, Twin Studies Center (CSU Fullerton)
PARTICIPANTS NEEDED: Adult children of identical or fraternal twins (18+)
LOCATION: Any English speaking location in United States
PURPOSE OF STUDY: Understand family dynamics in families where twins are identical or fraternal
METHOD OF INVESTIGATION: Participants will fill out an online questionnaire.
SPONSORING INSTITUTION: California State University, Fullerton
INITIATION DATE: March 2026
COMPLETION DATE: March 2027
FOR MORE INFORMATION OR TO VOLUNTEER TO JOIN THE STUDY, CHECK OUT THIS LINK: https://fullerton.qualtrics.com/jfe/form/SV_38C8mPX3mFWE3NY OR EMAIL DR. NANCY SEGAL: nsegal@fullerton.edu
TITLE OF STUDY: Dynamics of Adult Multiples (Parent Survey of Multiples)
PARTICIPANTS NEEDED: Parents or guardians of multiples who are 18 years or older.
LOCATION: Anywhere in the United States
PURPOSE OF STUDY: To collect data regarding various dynamics between adult multiple siblings.
SPONSORING ORGANIZATION: Multiples of America
INITIATION DATE: March 2026
COMPLETION DATE: December 2026
FOR MORE INFORMATION: Pam Edelman at research@multiplesofamerica.org.
TO VOLUNTEER TO JOIN THE STUDY: Use the QR Code on the graphic or go to www.surveymonkey.com/r/YL38VSQ
TITLE OF STUDY: Dynamics of Adult Multiples (Adult Multiples Survey)
PARTICIPANTS NEEDED: Multiples who are 18 years or over.
LOCATION: Anywhere in the United States
PURPOSE OF STUDY: To collect data regarding various dynamics between adult multiple siblings.
SPONSORING ORGANIZATION: Multiples of America
INITIATION DATE: March 2026
COMPLETION DATE: December 2026
FOR MORE INFORMATION: Pam Edelman at research@multiplesofamerica.org.
TO VOLUNTEER TO JOIN THE STUDY: Use the QR Code on the graphic or go to https://www.surveymonkey.com/r/CZRNTXS
TITLE OF STUDY: Financial Preparedness and Unexpected Cost Burden Among Families Experiencing Multiple Gestation Pregnancies in the United States
INVESTIGATOR: Brock Bossert, Independent Researcher
PARTICIPANTS NEEDED: Parents of Multiples (1 parent per family)
LOCATION: Anywhere in United States
PURPOSE OF STUDY: The purpose of this study is to quantify the financial impact of multiple gestation pregnancies on American families, identify the most significant unexpected cost categories, assess awareness of existing financial protection options, and understand what financial resources families wish had been available to them. The findings will be made available to Multiples of America and may inform future development of financial resources and support tools for multiple birth families.
METHOD OF INVESTIGATION: Online Survey
INITIATION DATE: May 20, 2026
COMPLETION DATE: 60 days from initiation or upon collection of 350 qualified responses — whichever comes first.
CLICK THIS LINK TO AN INFORMAL AND ANONYMOUS GOOGLE FORM TO JOIN IN THE STUDY:
https://docs.google.com/forms/d/e/1FAIpQLSedzDx7ptF9ZXpQ1oIyxkHzdpIB46_Vw5y7zB7ERDBs21-zZg/viewform
QUESTIONS? EMAIL STEPHANIE ERNST: brockin02@gmail.com
TITLE OF STUDY: Pairs of a Different Color: What Extraordinary Twins and Siblings Reveal About Person Perceptions, Prejudice and Family Relations
INVESTIGATOR: Dr. Nancy L. Segal, Professor of Psychology and Director, Twin Studies Center (CSU Fullerton)
PARTICIPANTS NEEDED: Identical and fraternal twins, triplets, and more, born to mixed race/background couples (of any age), their non-twin siblings (of any age), and the multiples’ parents.
LOCATION: Anywhere in the United States, Entire Multiples of America membership
PURPOSE OF STUDY: In this study, the researcher seeks to learn more about the unique experiences of twins, triplets, and more (and any non-twin siblings) born to parents from different racial/ethnic backgrounds as well as the special challenges faced by parents who raise them. Information about the experiences of the multiples at home, in school, and in the community and special parenting challenges will be gathered using a brief questionnaire and interview.
METHOD OF INVESTIGATION: Participants will be interviewed using a brief questionnaire by phone or over Zoom.
SPONSORING INSTITUTION: California State University, Fullerton
INITIATION DATE: February 2023
COMPLETION DATE: Open-ended. Note upon completion of the study, the researcher plans to use the information in writing a book on the topic. In the interest of confidentiality names can be withheld or changed.
FOR MORE INFORMATION OR TO VOLUNTEER TO JOIN THE STUDY, EMAIL DR. NANCY SEGAL: nsegal@fullerton.edu
TITLE OF STUDY: RUaTwin
PRINCIPAL INVESTIGATOR: Rebecca Betjemann
PARTICIPANTS NEEDED: Adult twins. Both twins in a pair (or all multiples in a set) will need to complete the online survey.
LOCATION: Anywhere in the United States
PURPOSE OF STUDY: To assess topics including personality, religiosity and spirituality, altruism, empathy, political interest, opinions on groups and social perspectives in twin pairs.
METHOD OF INVESTIGATION: Participants will complete an online study which will take about 15-25 minutes to complete. Each response is assigned to a numeric identifier, so it is not connected with the participant. This means all responses are confidential.
NOTE: A few questions on the survey ask for perceptions about religion or politics. For many of these, as well as other questions in the survey, respondents may elect to respond, “prefer not to answer.”
SPONSORING INSTITUTION: Regis University, Denver, CO
INITIATION DATE: December 2022
COMPLETION DATE: Open
COMPLETE THE CONTACT FORM ON THIS WEBPAGE TO BEGIN: https://www.ruatwin.org/
QUESTIONS? EMAIL: ruatwin@regis.edu
TITLE OF STUDY: Singletons Research Study
INVESTIGATOR: Michele Lewicki, Communications & Marketing Vice President, Multiples of America
PARTICIPANTS NEEDED: Singletons, over the age of 18, who have older or younger multiple siblings.
LOCATION: Anywhere in the United States
PURPOSE OF STUDY: The purpose of this study is to explore the challenges that singletons, siblings to multiple-birth twins or higher order of multiples within the same family experienced and how these experiences molded them to the adults that they are today. The results of this study may assist parents of multiples and singletons to learn effective parenting strategies to proactively address potential challenges the singletons experience while being raised in a multiple-birth family. The results are expected to contribute to social change by providing parents strategies to effectively manage the balance in raising multiples and singletons and minimizing stress or take proactive actions as needed. The results of this study may contribute to social change by providing parents insight of the challenges that singletons experience and how to overcome them. Addressing the challenges that singletons experience when being raised with multiples would be beneficial for the parents to ensure a well-balanced parenting experience for all siblings.
METHOD OF INVESTIGATION: Participants will be interviewed in a 30 minute to 1-hour long face to face or virtual semi-structured interview.
SPONSORING ORGANIZATION: Multiples of America
INITIATION DATE: December 2024
COMPLETION DATE: Open-ended
FOR MORE INFORMATION, EMAIL: communications@multiplesofamerica.org
TO VOLUNTEER TO JOIN THE STUDY: Use the QR Code on the graphic or go to: https://docs.google.com/forms/d/e/1FAIpQLSeKVmDG34IlWv2PNejR6gY6EvBpoS537TW8TdBDhnKjQnbTFw/viewform
TITLE OF STUDY: “Parent Experiences and Perspectives on Hearing Loss in Monochorionic Twins with Twin Anemia Polycythemia Sequence: A Cross-Sectional Survey.” (Formal name: LOSS-TAPS)
INVESTIGATOR: The TAPS Support Foundation
PRINCIPLE INVESTIGATORS: The TAPS Support Foundation; Stephanie Ernst, Founder
PARTICIPANTS NEEDED: Parents and caregivers of children with a diagnosis of Twin Anemia Polycythemia Sequence (TAPS) and hearing loss
LOCATION: Anywhere in the world
PURPOSE OF STUDY: To create a scientific communication around parental perspectives concerning hearing loss in TAPS children, and to develop important resources for parents and professionals, including information sheets. It will also help us to shape future research questions in this area.
METHOD OF INVESTIGATION: Online Survey
SPONSORING INSTITUTION: LUMC in Leiden, the Netherlands
INITIATION DATE: December 12, 2025
COMPLETION DATE: February 12, 2026
CLICK THIS LINK TO AN INFORMAL AND ANONYMOUS GOOGLE FORM TO JOIN IN THE STUDY:
https://www.tapssupport.com/parent-perspectives-on-hearing-loss/
QUESTIONS? EMAIL STEPHANIE ERNST: stephanie@tapssupport.com
If you have any questions concerning any of these research opportunities, contact Multiples of America at info@multiplesofamerica.org.
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Email: info@MultiplesofAmerica.org
MEMBERS ONLY LOG IN
Multiples of America
Executive Office
2000 Mallory Lane
Suite 130-600
Franklin, TN 37067-8231
Email: info@MultiplesofAmerica.org