Knight, C., Mallinson-Howard, S., Knight, C., Hill, A., & Hall, H. (2018). The 2 × 2 model of perfectionism and youth sport participation: A mixed-methods approach. Psychology of Sport and Exercise. doi:10.1016/j.psychsport.2018.02.011

Knight, Camilla, S.H Mallinson-Howard, C.J Knight, A.P Hill, and H.K Hall. "The 2 × 2 Model of Perfectionism and Youth Sport Participation: A Mixed-methods Approach." Psychology of Sport and Exercise 2018.

Knight, Camilla, et al. "The 2 × 2 Model of Perfectionism and Youth Sport Participation: A Mixed-methods Approach." Psychology of Sport and Exercise 2018.