Methods
Literature search
Major databases (PubMed, Cochrane Collaboration, Dissertation
Abstracts International), meditation bibliographies,
review papers, and research anthologies27–30 were searched
for papers on the TM technique and trait anxiety from 1970
to 2012. Authors who had conducted randomized studies on
the TM technique were also directly contacted. A total of 696
research papers and reviews on the TM technique were
identified; 14 papers reported on 16 RCTs on the effects of
the TM technique on trait anxiety