Mark Andrews and I introduce the target article with an editorial aimed at providing some background to psychologists who are interested in Bayesian statistics but need a little back story. Our main aim was to try and indicate that the debate about Bayesian statistics has moved on from the frequentist vs. Bayesian argument and on to more interesting territory - illustrated both by the target article and the commentaries.
Also I believe that as of writing access is free to the target article and commentary ...
Andrews, M., & Baguley, T. (2013). Prior approval: The growth of Bayesian methods in psychology. British Journal of Mathematical and Statistical Psychology, 66, 1–7. doi:10.1111/bmsp.12004
Gelman, A., & Shalizi, C. R. (2013). Philosophy and the practice of Bayesian statistics. British Journal of Mathematical and Statistical Psychology, 66, 8–38. doi:10.1111/j.2044-8317.2011.02037.x