... Observed effect sizes for this association ranged from r .16 to 0.76, with significant heterogeneity in effect sizes across studies, Q (20) Lastly, analyses examined correlation statistics on the association between posttraumatic stress and each of the alexithymia subdimensions. After adjusting to account for random variance, weighted mean effect sizes suggested a moderate association between posttraumatic stress and difficulties in identifying feelings, ES ¯ Zr 0.36, SE Zr 0.02, 95% CI [0.31, 0.40], k 19, FSN 49; a slightly smaller association between posttraumatic stress and Freeman et al., 2000 (A) Ramirez et al., 2001Jakupcak et al., 2006 Freeman et al., 2000 (B) Brady et al., 2017Reynolds et al., 2017Gaher et al., 2016Simpson et al., 2006Miller & Johnson, 2012Zeng et al., 2018Frewen et al., 2008Evren et al., 2010Frewen et al., 2012Mazza et al., 2015Yehuda et al., 1997Cloitre et al., 2002 (A) Cloitre et al., 2002 (B) Spitzer et al., 2007Demers et al., 2015Boden et al., 2012Schechter et al., 2015Simeon et al., 2009 Total 30 40 50 60 70 80 Figure 1. Alexithymic trait severity in individuals with PTSD. ...