Dr. Berg's research primarily focuses on tobacco control, with particular emphases on social marketing, consumer behavior, policy change and impact, and vulnerable populations (e.g., youth, minorities). She has conducted NIH-funded research domestically focusing on youth tobacco use and prevention as well as comorbidities including alcohol and marijuana use within the context of diverse policy and market environments. She is well-known for her work in alternative tobacco products, particularly e-cigarettes, as well as for her work in tobacco-marijuana co-use. She also received a Fulbright Scholarship in 2013 to conduct tobacco control research in the Republic of Georgia; she has worked internationally in China, India, and elsewhere as well.
Dr. Berg also is working in the area of improving quality of life among cancer survivors through the use of positive psychology. To address these research areas, Dr. Berg's methodological strengths include developing and testing interventions involving technology-based approaches, behavioral counseling, and pharmacotherapy; conducting longitudinal studies; survey research; and qualitative research.