David Tuller

Trial By Error: Letter to BMJ Seeking Correction in Study of Long Covid Physical-and-Mental Rehabilitation Program

By David Tuller, DrPH Last month, The BMJ published a study of a rehab intervention for Long Covid in which the authors made claims that were not borne out by the data. The study was called “Clinical effectiveness of an online supervised group physical and mental health rehabilitation programme for ...

Trial By Error: Will MAGENTA’s Null Results Finally End Professor Crawley’s Long ‘Reign of Error’?

By David Tuller, DrPH For years, Professor Esther Crawley, the University of Bristol’s methodologically and ethically challenged ME/CFS investigator, has hoovered up millions of pounds from public and private funders to support her misbegotten research. She achieved this success as a grant magnet despite abundant and easily available evidence that ...

Trial By Error: An Interview with Neuroscientist Michael VanElzakker about the Just-Published and Long-Awaited NIH Study

By David Tuller, DrPH So, okay…The big enchilada from the US National Institutes of Health’s seven-year, $8-million, under-recruited and over-hyped study—"Deep phenotyping of post-infectious myalgic encephalomyelitis/chronic fatigue syndrome”--was published last week in Nature Communications. It would be fair to describe the ensuing public debate over this massive text-and-data dump as ...

Trial By Error: New Long Covid Exercise-and-Therapy Study Claims Success Despite Clinically Insignificant Findings

By David Tuller, DrPH A new study of an online group physical and psychological rehabilitation program for Long Covid confirms once again that people given an intervention purporting to help them are more likely to tell investigators that they feel better than those given nothing of the kind. People, this ...

Trial By Error: Leading FND Site Confirms Criticisms on Prevalence Outlined in Our Letter to Neurology Journal

By David Tuller, DrPH In two recent posts, here and here, I wrote about our letter on inflated prevalence claims for functional neurological disorder (FND) and about the response from the authors of the study we criticized. The 2021 article in NeuroImage: Clinical, “Neuroimaging in functional neurological disorder: state of ...
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