“…Chen, Cook, Li, & Zhu, 2009;Cook, Liang, Yang, & Zhu, 2007, chap. 11;Kao, 2009a;Kao & Hwang, 2008;Liang, Cook, & Zhu, 2008;Liang, Yang, Cook, & Zhu, 2006;Liu & Wang, 2009;Yang, Wu, Liang, Bi, & Wu, in press) and also to parallel processes systems (e.g. Kao, 2009b).…”