A number of factors, however, can complicate sharing lessons both within and between organisations. These include lack of formal co-ordination and advanced planning, uncertainty on how to organise information in a useful format, and difficulties in making context-specific findings relevant to other interventions (e.g. see previous discussion on RCTs). For instance, an independent review of the CIFs highlighted that the incorporation of information sharing and lesson learning in interventions varied significantly by fund (ICF, 2013).