“…To our knowledge, no studies have directly addressed this issue. Some relevant evidence has shown that FPE is significantly more strongly related to SIA than to depression; one study, however, has shown that there is no significant difference between these two correlations and that the relationship between FPE and depression remained significant upon controlling for SIA (Fergus et al, 2009;Weeks, Heimberg, Rodebaugh, & Norton, 2008). As a result of these data, it remains unclear whether FPE is related to depression or is a unique quality of SIA because these findings were derived from correlation (or partial correlation) analyses, which were confounded by other shared variances.…”