'Research' - yeah, nah.
I grew up with authoritarian parents and I'm one myself (semi-autho, maybe).
No 'research' in sight, same as generations before who managed to grow up without all the 'positive reinforcement' and other yadda yadda bullshit.
You do as you're told. No, I'm not going to wang on about why wearing a coat in winter is important, why you need to eat your veggies, why you need to go to school, clean your room, etc. You just do, or else.
No, you're not the centre of the universe and you're not more important than me, your parent.
Your basic needs (safety, food, shelter, etc) will always be met, but the rest is a compromise. You wants don't come before mine, it's a discussion and compromise. Sometimes we do what I want, sometimes we do what you want.
No, I'm not a show pony and I won't entertain you every spare minute of the day, learn to occupy and entertain yourself.
You'll eat what you're given (within reason, I know what my child hates and I won't serve her that), no endless choices. Don't like the food - go without.
No, I'm not going to endlessly listen about your feelz, not every little shit that happens to you is important, not every little disappointment or failure is world-ending and need to be discussed and/or pathologized to death. Life's not fair, the sooner you learn to deal with it - the better.
Your room with be tidy at all times, just as mine is. If it's a mess, it means the stuff strewn about is not needed and it's going to the bin. You have chores at home and it's not 'helping', it's you living here, same as me.
I grew up like that (just harsher) and my child gets this version-lite. And no, I don't hate my parents, we get along. We don't have child knife crime, school-refuseniks, endless 'anxiety', 'depression' and whatever else, teens behaving and living like pigs, telling 'fuck off bitch' to the teachers, massive drug problem (yea, there are drugs, obviously, but not at the scale of UK), etc where I'm from. So I'll stick with my parenting and not the 'research'.