The data in Religious Trends have been compiled from a large number of sources, all of which should be attributed, and presented in the form of articles, tables, charts and maps. This invariably means that there may be inconsistencies of definition and measurement, so please read any reservations which are noted. These are often in the datasets offered as csv downloads rather than the articles.
In Religious Trends, we endeavour to take care not only to explain and define the measures used, but also to offer an appropriate interpretation. We urge readers of Religious Trends to take similar steps to understand the bases of the measurements and use them accordingly.