IM was applied as follows : 1 ) Needs assessment of the community and culture ; consideration of evidence-base , policy and practice ; 2 ) Identification of desired outcomes and change objectives following identification of barriers to behaviour change mapped alongside psychological determinants ( e.g. knowledge , self-efficacy , intention ) ; 3 ) Selection of theory-based methods and practical applications to address barriers to behaviour change ( e.g. , strategies for responsive feeding ) ; 4 ) Design of the intervention by developing evidence-based interactive activities and resources ( e.g. , visual aids to show babies stomach size ) .