Someone commented above, but Jonathan Haidt "the anxious generation" is a place to start for a deeper analysis on the issue. Here is part 1 of a 3 part series of posts of his. I can't speak to the correlations and study directly, but Haidt's work is probably what you're looking for. https://www.afterbabel.com/p/the-case-for-causality-part-1 (the commenter elsewhere linked part 3 which I believe directly refutes this meta analysis)