The evidence base generally looks at either much smaller outcomes, like for example there is a specific form of behaviourism which is considered evidence based, because it's good at producing specific, measurable behaviours. And they know that hitting/smacking/spanking is associated with poor life outcomes in terms of mental health and prison time. This seems to be true even when you correct for other things like parental education etc.
Then there's the evidence base that looks at much larger definitions like dividing all parenting up into the four quadrants based on how much warmth and how much authority. Authority plus warmth is the ideal here being named authoritative, authority without warmth is authoritarian (do as I say or else), warmth without authority is permissive, parenting with neither authority or warmth is uninvolved (essentially, neglect). All three quadrants except for authoritative are associated with poor life outcomes. But again it's not detailed enough to say that X parenting produces Y type of adult, and the breadth of what is considered good parenting (authoritative) is hugely wide spanning from very strict, rigid parenting but backed up with lots of warmth, positivity and affection through all manner of parenting styles right through to a very loose, relaxed, loving kind of parenting style but where the adults are looked up to and respected. There is such a huge variation within this box which is all fine and leads to good outcomes.
Then there is attachment research but again it only gives you a very loose definition of what needs to be achieved in order to protect from the negative effects of disordered attachment. The idea for example that the parenting style "attachment parenting" is the only way to support attachment is overhyped and incorrect. You only have to achieve a really very baseline level of responsiveness to "tick that box" developmentally.
And actually the attachment research is a bit questionable anyway and again only gives us a very loose idea and it's all really obvious stuff.
So essentially what the research says is don't abuse your child, don't neglect your child, don't bring them up in a very chaotic constantly changing manner, don't pop in and out of their life as and when you feel like it, do have some expectations of them and they will probably be fine. Which is all really also what common sense and life experience will tell you. Most of the ideas that people have about parenting are much more rigid than what the research says and there is much less to "get wrong" compared to what most people claim. Most of the things that you could possibly get wrong are totally obvious things that many people would avoid anyway.