The intervention Complexity Assessment Tool for Systematic Reviews (iCAT_SR) is a new tool to assess and categorise levels of intervention complexity in systematic reviews. Core dimensions are measured such as the number of active components in an intervention and the level of skill required by those delivering and receiving the intervention. 

BioMed Central attended the 4th International Clinical Trials Methodology Conference (ICTMC) and the 38th Annual meeting for the Society for Clinical Trials (SCT) in Liverpool at the beginning of May. This was the first time that the biannual ICTMC had been combined with the SCT meeting providing a platform for the discussion of topics covering every stage of clinical trial methodology. Here we look back at some of the highlights.

Timothy Beebe is Mayo Professor and Head, Division of Health Policy and Management, School of Public Health, University of Minnesota. He joined the editorial board of BMC Medical Research Methodology as Section Editor in 2011.