"Strong evidence" refers to solid information or proof that strongly supports a claim or argument. It means having reliable facts, data, or observations that make the statement or conclusion highly credible and convincing. Full definition
I can't think of stronger evidence of how much his school believes in him. (newyorkschooltalk.org)
This study provides strong evidence of the usefulness of training health and family practitioners in father - inclusive practice. (fatherhoodinstitute.org)
The study found strong evidence for just that scenario. (news.brown.edu)