Work effectiveness & Work Productivity. The Work and Health Interview (Stewart et al., 2003) will assess work effectiveness and work productivity for participants who are currently working (unemployed participants will not complete these measures). Work effectiveness will be measured by one self-report item-" On days that you worked during the past 4 weeks, how effective were you in your job on average? Please tell me, on a scale of 0 to 100, where 0% means that you were not at all effective, and 100% means that you were completely effective, how effective would you say you have been on your job during the past 4 weeks?" Work productivity will be measured by 7 self-report items scored on a Likert scale ranging from 0, "none of the time" to 4, "all the time" (item example: "Work more slowly than usual?"). Participants will report on work productivity over the last two weeks. The Work and Health Interview has been used widely in patients with chronic conditions, demonstrating good psychometric properties.