“…Twenty‐three studies measured participants' knowledge about (people with) mental health problems 16,18,29–34,37–40,42,43,45,46,48–53,55 . Significant changes of knowledge by educational interventions were reported in 18 of those studies 16,18,29,30,32–34,38–40,43,45,46,48,50–53 . Attitudes (or attributions) towards people with mental health problems were assessed by 34 studies 16–23,25–27,29–46,48,49,51,54,55 .…”