The AAI is a 10 item self-report questionnaire assessing the frequency of cognitive processes (e.g., rumination, self-focused attention) and behavioural responses (e.g. social avoidance, appearance checking) seen in BDD.
Individuals respond to items on a 5-point Likert Scale (0= not all to 4= all the time) and a total score is obtained by summing all the items (range is 0 to 40). The reliable change score is 7 and above. Caseness is a score of 19 or above.
Two factors were identified in a clinical sample (Avoidance subscale items 1, 3, 5, 7, 9, 10) and Threat Monitoring subscale (items 2, 4, 6, 8) (Veale et al, 2014).
A reduction ≥ 40% on the AAI was the optimal cut-off for treatment response. An AAI score ≤13 was the optimal cut-off for full or partial remission (Fygare et al, 2020).
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Veale, D, Eshkevari, E, Kanakam, N, Ellison, N, Costa, A, Werner, T. (2014). The Appearance Anxiety Inventory: Validation of a process measure in the treatment of body dysmorphic disorder. Behavioural and Cognitive Psychotherapy. 42: 605–616 http://dx.doi.org/10.1017/S1352465813000556
Flygare, O, Chen, L, Fernández de la Cruz, L, Enander, J, Mataix-Cols, D, Rück, C, Andersson, E (2020) Empirically defining treatment response and remission in body dysmorphic disorder using a short self-report instrument. Behavior Therapy, https://doi.org/10.1016/j.beth.2020.10.006