Culture is a key determinant of children’s development both in its own right and for understanding the generalizability of developmental phenomena. Studying the role of culture in development requires information about participants’ demographic backgrounds. However, both reporting and treatment of demographic data are limited and inconsistent in child development research. A barrier to reporting demographic data in a consistent fashion is that no standardized tool currently exists to collect these data. Variation in cultural expectations, family structures, and life circumstances across communities make the creation of a unifying instrument challenging. Here, we present a framework to standardize demographic reporting for early child development (birth to 3 years of age), focusing on six sociodemographic construct categories: biological information, gestational status, health status, community of descent, caregiving environment, and socioeconomic status. For each, we discuss potential measurement items and provide guidance for their use and adaptation to different contexts. These items are stored in a repository of context-adapted questionnaires that provide a consistent approach to obtaining and reporting demographic information so that these data can be archived and shared in a more standardized format. The public significance of this work is to facilitate diversification of participants within developmental psychology by providing a framework for capturing demographic diversity.

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A survey of diversity in leading language acquisition journals revealed that only 2% of the 7,000+ languages of the world are represented. With a long-term aim of empowering researchers everywhere to contribute to this literature, we organized the First Truly Global /L+/ International Summer/Winter School on Language Acquisition (/L+/). /L+/ was a free 5-day virtual school that facilitated the interchange of expertise among early career researchers about all levels of language development in monolingual and multilingual contexts. Our paper provides an overview of organizing /L+/, the measures we took to ensure inclusivity, and qualitative and quantitative analyses of attendees' experiences. We asked for volunteers through the LangVIEW consortium resulting in a diverse organization team from under-represented areas: Sub-Saharan Africa, South and Southeast Asia, and Central and South America. To promote inclusivity, we (1) employed asynchronous and synchronous elements across three time zones; (2) provided closed captions for lectures and international sign interpretation for live sessions; (3) issued a code of conduct. For each time zone, an algorithm selected 120 participants (80% from traditionally under-represented regions) and 61 countries were represented. A post-school questionnaire revealed that 99% of attendees enjoyed taking part in /L+/. However, qualitative comments suggested that there were issues in duration, contents and scheduling. Although much remains to be done to promote inclusivity in linguistic research, we hope our school will contribute to empowering researchers to investigate and publish on language acquisition in their home languages.

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