Notably, these behavioral results contrast with some recent findings that higher self-reported experiential avoidance predicts better outcome from CBT than ACT (Wolitzky-Taylor et al., 2012; Niles et al., under review). However, this research is mixed; pre- treatment self-reported experiential avoidance predicted better outcome from ACT in a study comparing ACT and systematic desensitization for math anxiety (Zettle, 2003). One potential explanation for this discrepancy is that self-report measures intend to assess trait levels of experiential avoidance, even though expe- riential avoidance is highly context-dependent (Karekla et al., 2004). In addition, experiential avoidance takes many forms (e.g., thought suppression, escape behavior; Hayes, Wilson, Gifford, Follette, & Strosahl, 1996), and thus it is possible that behavioral versus subjective measurements of avoidance tap into different domains. While CBT may better target broad, trait-like experiential avoidance, our current results suggest that ACT's emphasis on willingness and “leaning into” sensations may be particularly well- suited for individuals with high levels of behavioral avoidance of physical sensations.