Figure 1
From: Oral Dysesthesia Rating Scale: a tool for assessing psychosomatic symptoms in oral regions
Item content validity index for scales [A] and [B]. Item content validity indices for all items are shown. For the Symptom Severity Scale [A], items A1, A2, A3, and A4 demonstrated acceptable content validity (≥0.8), while items A5, A6, and A7 did not reach acceptable values. For the Functional Impairment Scale [B], while items B1 and B2 did not reach acceptable values, items B3 and B4 demonstrated acceptable content validity.