The increased international legislation emphasising children's participation agenda heightened the need for high-quality research in early childhood. Listening to young children asserts their participation, agency and voices in research, an approach commonly associated with qualitative research methods. This Element provides a novel perspective to listening to children's voices by focusing on research methods in early childhood studies that are broadly categorised as quantitative, qualitative, and mixed methods. Locating these research methods from a children's rights perspective, this Element is based on values that young children have the right to be involved in research irrespective of culture and context. Each section discusses how the different methodologies and approaches used in early childhood research align with the principles of children's participation and agency, as well as their right to express their views on matters that affect them. The Element concludes with a roadmap for future early childhood research and its ethical dissemination.