Finch, Tracy L.Girling, MelissaMay, Carl R.Mair, FrancesMurray, ElizabethTreweek, ShaunMcColl, ElaineSteen, Ian NicholasCook, ClareVernazza, ChristopherMackintosh, NicolaSharma, SamridhBarbery, GaerySteele, JimmyRapley, Tim2018-11-162018-11-162018-11-15Finch, T L, Girling, M, May, C R, Mair, F, Murray, E, Treweek, S, McColl, E, Steen, I N, Cook, C, Vernazza, C, Mackintosh, N, Sharma, S, Barbery, G, Steele, J & Rapley, T 2018, 'Improving the normalization of complex interventions : part 2 - validation of the NoMAD instrument for assessing implementation work based on normalization process theory (NPT) ', BMC Medical Research Methodology, vol. 18, 135. https://doi.org/10.1186/s12874-018-0591-x1471-2288ORCID: /0000-0002-7239-7241/work/186968437http://hdl.handle.net/2164/11452Funding This study is funded by the Economic and Social Research Council Study [Grant Number RES-062-23-3274] which is gratefully acknowledged. This work was also partially supported by funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 733025, ImpleMentAll project. This content reflects only the author’s view and the European Commission is not responsible for any use that may be made of the information it contains.The Health Services Research Unit, University of Aberdeen, receives core funding from the Chief Scientist Office of the Scottish Government Health Directorates. CRV was funded by a Clinician Scientist award supported by the National Institute for Health Research during this independent research. Availability of data and materials The datasets generated and/or analysed during the current study are deposited on UK Datashare (record 852,387). Further information is available from the corresponding author on reasonable request.682326engnormalization process theoryNPTNoMADimplementation processquestionnaireinstrument developmentcomplex interventionsR Medicine (General)R1Journal article10.1186/s12874-018-0591-x18