In a recent issue of Journal of Managerial Psychology published in 2009 is presented an experiment with 202 full-time employees (81 males, mean age=38.3 and 121 females, mean age= 28.4) working in very different jobs in the retail, manufacturing and healthcare to investigate the extent to which personality and demographic factors explain variance in motivation and job satisfaction as defined by Herzberg et al.’s (1959) two-factor theory. Every person was given 3 questionnaires ( The ten item personality inventory, The work values questionnaire (WVQ), The job satisfaction scale) and had to complete them via a website.