Neuroticism and extraversion (12 items/scale) were measured using the Dutch version of the EPQ-R Short Scale (Sanderman et al. 1991). Depressive symptoms were measured using the BDI and anxiety symptoms via a Dutch version of the Symptom Checklist 90 (Arrindell and Ettema 1986), a self report inventory which includes 10 items from the anxiety scale which are rated on a 5-point scale of symptom distress.