Contemporary Quantitative Statistical Methods for Family Psychology Kim-Spoon, J., Maciejewski, D. F., & Grimm, K. J. (2019). Contemporary quantitative statistical methods for family psychology. In B. H. Fiese, M. Celano, K. Deater-Deckard, E. N. Jouriles, & M. A. Whisman (Eds.), APA handbook of contemporary family psychology: Foundations, methods, and contemporary issues across the lifespan (Vol. 1, pp. 299–316). American Psychological Association.
This resource will orient you to quantitative statistical methods.