Test effort in persons with Chronic Fatigue Syndrome when assessed using the Validity Indicator Profile

Cockshell, Susan J.; Mathias, Jane L.

doi:10.1080/13803395.2012.668176

Cited by 16 publications

(10 citation statements)

References 38 publications

(51 reference statements)

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“…An additional 41 participants responded but were not included (CFS database n = 30; letter n = 11) for the following reasons: Seventeen (41%) did not meet one or more of the inclusion criteria, 19 (46%) were not available for testing, two (5%) were too unwell to participate, and three (7%) declined to participate after being contacted. Four of the 54 CFS participants who underwent cognitive testing were excluded because their performance on an effort test (Validity Indicator Profile) was classified as being ‘invalid,’ reflecting poor effort but an intention to do well (see Cockshell & Mathias, 2012), leaving valid data for the final sample of 50 CFS participants. This sample size is in the upper range of those reported by other studies of CFS ( M = 30 CFS participants, averaged across 50 studies; Cockshell & Mathias, 2010).…”

Section: Methodsmentioning

confidence: 99%

“…However, during the recruitment process, 11 potential controls had to be excluded: Seven (64%) did not meet one or more of the inclusion criteria, two (18%) were not suitable matches for anyone in the CFS group, and two (18%) were not available when it came to scheduling the test sessions. As was the case for the CFS group, four of the 54 healthy controls who initially underwent cognitive testing were excluded because their performance on the Validity Indicator Profile was classified as ‘invalid,’ (see Cockshell & Mathias, 2012), resulting in a final sample of 50 healthy controls.…”

Section: Methodsmentioning

confidence: 99%

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Cognitive deficits in chronic fatigue syndrome and their relationship to psychological status, symptomatology, and everyday functioning.

Cockshell

Mathias

2013

Neuropsychology

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Cognitive deficits in chronic fatigue syndrome and their relationship to psychological status, symptomatology, and everyday functioning.

Cockshell

Mathias

2013

Neuropsychology

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“…77 These deficits are not due to poor effort, insomnia, or mood disorders. 78,79 Defects become particularly prominent when patients face deadlines, unrelenting demands, and multiple simultaneous tasks. 80 Motor speed, verbal abilities, and global reasoning remain intact.…”

Section: Unrefreshing Sleepmentioning

confidence: 99%

Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: Essentials of Diagnosis and Management

Bateman

Bested

Bonilla

et al. 2021

Mayo Clinic Proceedings

156

144

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Despite myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) affecting millions of people worldwide, many clinicians lack the knowledge to appropriately diagnose or manage ME/CFS. Unfortunately, clinical guidance has been scarce, obsolete, or potentially harmful. Consequently, up to 91% of patients in the United States remain undiagnosed, and those diagnosed often receive inappropriate treatment. These problems are of increasing importance because after acute COVID-19, a significant percentage of people remain ill for many months with an illness similar to ME/CFS. In 2015, the US National Academy of Medicine published new evidence-based clinical diagnostic criteria that have been adopted by the US Centers for Disease Control and Prevention. Furthermore, the United States and other governments as well as major health care organizations have recently withdrawn graded exercise and cognitive-behavioral therapy as the treatment of choice for patients with ME/CFS. Recently, 21 clinicians specializing in ME/CFS convened to discuss best clinical practices for adults affected by ME/CFS. This article summarizes their top recommendations for generalist and specialist health care providers based on recent scientific progress and decades of clinical experience. There are many steps that clinicians can take to improve the health, function, and quality of life of those with ME/CFS, including those in whom ME/CFS develops after COVID-19. Patients with a lingering illness that follows acute COVID-19 who do not fully meet criteria for ME/CFS may also benefit from these approaches.

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“…Three studies have found that between 16% and 30% of CFS patients obtained scores indicative of underperformance on a PVT (Goedendorp et al, 2013;Van der Werf et al, 2000;Van der Werf, de Vree, van der Meer, & Bleijenberg, 2002). Other studies have found that the PVT failure rate was low (i.e., 6%; Cockshell & Mathias, 2012) or even zero (Busichio, Tiersky, DeLuca, & Natelson, 2004) in this patient group. These inconsistent findings on the prevalence of underperformance in CFS patients could be explained by methodological differences between studies, that is, the different PVTs that were used and the heterogeneity of the CFS patient samples.…”

Section: Introductionmentioning

confidence: 39%

Feedback on underperformance in patients with Chronic Fatigue Syndrome: The impact on subsequent neuropsychological test performance

Roor

Knoop

Dandachi-FitzGerald

et al. 2018

Applied Neuropsychology: Adult

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Performance Validity Tests (PVTs) are used to measure the credibility of neuropsychological test results. Until now, however, a minimal amount is known about the effects of feedback upon noncredible results (i.e., underperformance) on subsequent neuropsychological test performance. The purpose of this study was to investigate the effects of feedback on underperformance in Chronic Fatigue Syndrome (CFS) patients. A subset of these patients received feedback on Amsterdam Short-Term Memory (ASTM) failure (i.e., feedback [FB] group). After matching, the final sample consisted of two comparable groups (i.e., FB and No FB; both n ¼ 33). At baseline and follow-up assessment, the patients completed the ASTM and two measurements of information processing speed (Complex Reaction Time [CRT] and Symbol Digit Test [SDT]). Results indicated that the patients in the FB group improved significantly on the CRT, compared to the No FB group. Although not significant, a comparable trend-like effect was observed for the SDT. Independent of the feedback intervention there was a substantial improvement on ASTM performance at re-administration. A limited feedback intervention upon underperformance in CFS patients may result in improvement on information processing speed performance. This implies that such an intervention might be clinically relevant, since it maximizes the potential of examining the patients' actual level of cognitive abilities.

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Test effort in persons with Chronic Fatigue Syndrome when assessed using the Validity Indicator Profile

Cited by 16 publications

References 38 publications

Cognitive deficits in chronic fatigue syndrome and their relationship to psychological status, symptomatology, and everyday functioning.

Cognitive deficits in chronic fatigue syndrome and their relationship to psychological status, symptomatology, and everyday functioning.

Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: Essentials of Diagnosis and Management

Feedback on underperformance in patients with Chronic Fatigue Syndrome: The impact on subsequent neuropsychological test performance

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