有些不同源于不同国家对虔诚的不同理解，像美国人对虔诚的看法可能与中东人不同，他们并不像伊斯兰信徒那样强调对宗教的信仰。
Some of this variation may be explained by cross-national differences regarding what it means to be religious. For example, Americans may define religiosity differently than Middle Easterners, with perhaps a weaker attachment to religious beliefs than is true in Islamic countries.