아빠가 들려주는 [통계] 누가 쓸까? 샘플 수 계산 for Joint Testing of Indirect Effects User Jeehyoung Kim on YouTube, 20 May 2021 https://tinyurl.com/SS4Joint 논문은 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4442753/