How does PsycEXTRA differ from the PsycINFO database?
PsycINFO includes bibliographic data and abstracts from scholarly, peer-reviewed sources. PsycEXTRA does not contain data from scholarly, peer-reviewed journals, so there is no overlap with PsycINFO. In addition to bibliographic data and abstracts, PsycEXTRA also contains full-text content for a large percentage of documents covered.