This paper seeks to advance the global study of religiosity and spirituality by conducting a meta-analysis of major approaches in the field. While the field, and thus the collected publications, are dominated by Western approaches, particular attention is paid in this analysis to publications from geographies that are not from the United States or Western Europe, especially these world regions: Africa, Asia, and Latin America. Similarly, while the study of religiosity is considerably centered around Christianity, this analysis extends beyond Christianity, to the extent possible in extant studies, to include publications investigating other world religious traditions, such as African spirituality, African witchcraft, Afro-Caribbean religious traditions, Buddhism, Confucianism, folk religions, Hinduism, Islam, Judaism, Mormonism, Neo-paganism, New Religious Movements (NRMs), Shamanism, Sikhism, Spiritism, Taoism, and spirituality generally. A total of 530 publications were reviewed, and the studies are categorized by unit of analysis into: Macro, micro, and meso-level. Measurement constructs include religious demography, culture, belonging, behaving, believing, bonding, religious salience, spiritual identities, religious networks, occupations, congregations, denominations, and faith-based organizations. Non-Western sources and approaches are analyzed toward furthering future research in under-studied world regions. Implications are drawn for the field, such as the need to geo-code publications at the country level.

This paper provides a meta-analysis of the intersection of (a) religiosity and spirituality with (b) generosity, philanthropy, nonprofits, and prosociality. The study is informed by three informational sources, chronologically: (1) informational interviews with scholars and practitioners based within and studying regions outside of the U.S. and Western Europe; (2) discovery search of purposefully selected extant publications, especially focusing on the last decade of contemporary scholarship; and (3) systematic search of relevant peer-reviewed publication outlets since 2010. Reviewed publications are categorized by level of analysis into macro, meso, and micro approaches. Across each level and source, publications are also geo-tagged for their geographic scope. Particular attention is paid to the under-studied world regions of Africa, Asia, Latin America, and the Middle East. The results reveal that Asia is the most studied and Latin America the least studied, and that meso-level approaches are the most common while micro-level are the least common. Additionally, a map of publication counts reveals within-region inequalities by country. Implications of the analysis are drawn for future studies, particularly ways to advance this interdisciplinary field.