“…Further, we chose to analyze Jews and Arabs separately due to their many differences, and studies that analyze combined samples will reveal different kinds of findings that are more generalizable across cultures. Our cooperation rates are similar to other studies (Bonanno, Galea, Bucciarelli & Vlahov, 2006;Boscarino, Adams, Stuber, & Galea, 2005), but we must consider that nonresponders may be different in important ways that cannot be discerned. Nonresponders may include both those who are more socially adapted and therefore at work more hours, or those more maladapted, who decline being interviewed, or otherwise cannot be reached.…”