Fig 1. Test anxiety is higher before oral than before written exams.

Box plots show medians for self-reported state anxiety as well as measured heart rate, systolic blood pressure and salivary cortisol levels immediately before the written test (T1), the oral exam (T2) and at the reference time points at the beginning (T0) and at the end (T3) of the term, respectively. Note, that for the assessment of salivary cortisol, T0 and T3 were sampled at the exact time of day as T1 and T2, respectively. The boxes represent medians as well as upper and lower quartiles and the whiskers indicate 90^th and 10^th percentiles, respectively. *** indicate significant results (P <0.001) from Friedman tests (nonparametric repeated measures ANOVA).