In the recently published article an error was included in figure 1. In Model II, a line from X self to Y self was included in error.
Original Version
Corrected Version – the arrow has been removed
Our systems are now restored following recent technical disruption, and we’re working hard to catch up on publishing. We apologise for the inconvenience caused. Find out more: https://www.cambridge.org/universitypress/about-us/news-and-blogs/cambridge-university-press-publishing-update-following-technical-disruption
Published online by Cambridge University Press: 11 April 2017
In the recently published article an error was included in figure 1. In Model II, a line from X self to Y self was included in error.
Original Version
Corrected Version – the arrow has been removed