“…Focus group interviews was the most common data collection method [ 26 , 27 , 29 – 34 , 37 , 39 , 41 , 44 , 45 , 47 – 56 , 59 – 64 ] while other studies have used individual interviews [ 25 , 28 , 30 , 34 , 36 , 42 , 46 , 48 , 49 , 57 , 58 , 64 ] with children and young people. However, seven of the studies reported including both interviews and surveys to involve the children and young people’s views in the development of the intervention [ 27 , 30 , 42 , 44 , 45 , 48 , 65 ]. As a supplement to these more traditional data collection methods there were also research designs that included a range of innovative methods, such as video recordings [ 40 , 49 , 57 ] photographs [ 38 , 40 , 54 ] drawings and texts [ 46 , 58 , 59 ] advisory boards [ 33 ], e-mail and a social networking site [ 55 ], observations [ 57 , 64 ], script-making [ 40 , 43 ], storyboarding [ 63 ], active and spontaneous role play [ 43 ], and videoconferences and in-person meetings [ 35 ].…”