When considering the relationship between subjective and objective measures of cognitive functioning, it is important to note that similar findings have been reported in other groups, including healthy participants from different age groups (Mäntylä, Ronnlund, & Kliegel, 2010; Martin, 1983; Tucker-Drob, 2011), stroke patients (Duits, Munnecom, van Heugten, & van Oostenbrugge, 2008), and mild traumatic-brain-injury samples (Stulemeijer, Vos, Bleijenberg, & van der Werf, 2007); hence, this discrepancy is not unique to CFS and may indicate that they are measuring different things (Ray et al., 1993). Many questionnaires ask about general cognitive functioning (e.g., memory when doing everyday tasks), which thus has the advantage of capturing a broad range of activities and functions in a realistic environment, but may not be compatible with tests that assess specific cognitive functions in a structured and controlled test environment (Wearden & Appleby, 1996). Some researchers have dealt with this by asking questions that are more closely aligned with the tests; however, they, too, have failed to find a relationship in both CFS and control groups (Short et al., 2002; Wearden & Appleby, 1997), which may, in part, be because it is difficult to provide a rating before being exposed to the task (Short et al., 2002).