Cavalier (born Darlene Ebarb), is a member of the Choctaw Apache Tribe of Ebarb, LA. She earned a bachelor's degree from Temple University and a master's degree from the University of Pennsylvania where she studied the role of the non formal scientists in science.

She has served as a principal investigator on several awards from the federal agencies including the National Science Foundation,^[5] the National Institutes of Health, the Institute for Museum and Library Services,^[6] and several private foundation grants. She is a founding board member of the Citizen Science Association, an Explorer and Fellow at National Geographic,^[7] She is the co-editor of The Rightful Place of Science: Citizen Science,^[8][9] author of The Science of Cheerleading,^[10] and co-author of The Field Guide to Citizen Science.^[11] The book was translated into the Kyrgyz language in 2021.^[12]

In 2016, Cavalier co-organized the Citizen Science Maker Summit, hosted by ASU.^[13] In 2017, Cavalier was appointed to the National Academy of Sciences' Committee on Designing Citizen Science to Support Science Learning to identify and describe existing citizen science projects that support science learning in both formal and informal settings.^[14] The committee will develop a set of evidence-based principles to guide the design of citizen science.

She is the founder of Science Cheerleaders, a non-profit organization of more than 300 current and former NFL and NBA cheerleaders pursuing careers in science, technology, engineering and math. They challenge stereotypes, inspire young women to consider STEM careers, and help people from all walks of life get involved in science. The organization plays on her former position as a cheerleader for the Philadelphia 76ers basketball team.^[15] In 2012, Cavalier was the recipient of the Pop Warner Cheer Award.^[16] In 2013, the Science Cheerleaders partnered with the Pop Warner organizations to lead the "world's largest cheerleading cheer," an event that was recognized by Guinness World Records.^[17] The Science Cheerleaders have been featured on national and international media outlets] and serve as principal investigators in research projects including Project MERCCURI, a study of microbes on the International Space Station.^[18]

In October 2020, SciStarter was featured on The Weather Channel^[19] and on Disney's Weird But True.^[20] In December 2022, her work received the President of Arizona State University's Medal for Social Embeddedness.

She was a senior advisor and contributor to Discover Magazine.^[21][22][23] She served on the steering committee of Science Debate 2008. Her writing has also appeared in science publications such as the New York Academy of Sciences Magazine^[24] and Science Progress.^[25] The Science Cheerleaders were featured on the Today Show,^[26] CNN, Fox National Headline News, the Washington Post, and other media outlets.

• Science Cheerleader
• SciStarter
• Science Debate