Another servant leadership-organizational citizenship behavior study was conducted by Vondey with a sample of 114 that cut across various industries in the United States to investigate the moderating role of person-organization fit and organizational identification on the relationship between servant leadership and organizational citizenship behavior. The findings revealed a direct but partial effect of servant leadership on employee organizational citizenship behavior. Furthermore, the findings demonstrated positive moderating effects of person-organization fit and organizational identification on the relationship between servant leadership and organizational citizenship behavior. One of Vondey’s limitation is the use of only four items of the Liden et al.’s servant leadership instrument. In order to address this weakness, Vondey suggested that future studies apply the Liden et al.’s instrument holistically