Is the topic Blended Families and children too narrow or broad to research
Too broad
So how can I narrow it down to perhaps
Blended Families and the family structure
I don't understand the difference. Blended families and family structure seems broader than your original topic.
so how exactly can I narrow it
blended families and affect on children health
Yes, that would be good.
Or how about various ways children cope in blended families.