“…On the other hand, clinicians' ratings using single-item scales have demonstrated validity in assessing aspects such as rating of sedation by ICU nurses [27], quality of life and side effects of chemotherapy [28][29][30], anxiety in patients with myocardial infarction [31], perception of bladder condition [32], physical activity [33], depressed mood in anxiety disorders [34], dental anxiety [35], severity of dyspepsia symptoms [36], and quality of life and health utilities in epilepsy [37,38], as well as to assess seizure severity in children whose parents complete a single-item scale [39]. Our focus on the clinician's assessment of epilepsy severity stems from an interest in determining the role of neurologists' ratings of severity as one potential predictor of children's HRQL.…”