“…Most interestingly, there was no such correlation in the exam group. The literature has reported the individual difference of trait anxiety in the relationship between CNV amplitude and state anxiety (Glanzmann & Froehlich, 1984;Knott & Irwin, 1967;Knott & Irwin, 1968;Knott & Irwin, 1973;McCallum & Papakostopoulos, 1973;Van Veen et al, 1973). Both the ceiling hypothesis (Knott & Irwin, 1967) and the distraction hypothesis (Tecce, 1971;Tecce, 1972) have been proposed for these results.…”