The AFQ was derived from an initial pool of 50 items developed to measure psychological acceptance, conceptualized as an active and multidimensional process involving high or low levels of: willingness to experience private events, values-oriented action, experiential avoidance, and cognitive and emotional fusion. Results of exploratory factor analysis on these initial 50 items supported a three-factor solution. Factor one consisted of 25 items, all negatively worded. Conceptually, this factor seems to tap into experiential avoidance and fusion and is now the Avoidance and Fusion Questionnaire for Youth (AFQ-Y).
We have used the AFQ with children and adolescents 9-17 years old. Based on results from school studies in middle Tennessee, children report good comprehension of items. The AFQ seems to be a stronger predictor of negative outcomes such as physical and emotional symptoms.
The AFQ-Y is on ruthbaer.com.
Citations:
Greco, L. A., Lambert, W., & Baer, R. A. (2008). Psychological inflexibility in childhood and adolescence: Development and evaluation of the Avoidance and Fusion Questionnaire for Youth. Psychological Assessment, 20(2), 93–102. https://doi.org/10.1037/1040-3590.20.2.93
Livheim, F., Tengström, A., Bond, F.W., Andersson, G., Dahl, J. & Rosendahl, I. (2016). Psychometric properties of the Avoidance and Fusion Questionnaire for Youth: A psychological measure of psychological inflexibility in youth. Journal of Contextual Behavioral Science, 5(2), 103-110. https://doi.org/10.1016/j.jcbs.2016.04.001
Renshaw, T.L. (2018). Probing the relative psychometric validity of three measures of psychological inflexibility. Journal of Contextual Behavioral Science, 7, 47-54. https://doi.org/10.1016/j.jcbs.2017.12.001