Is Jack Turban Right About a Cass Review "Red Flag"?
Yuan Zhang , an expert in evidence-based medicine, guideline development, systematic reviews and an adjunct professor at McMaster University, responds to Dr. 's criticisms of the systematic literature reviews that supported the Cass Review:
"A reasonable peer reviewer would not reject results because the systematic review authors changed a scale. Instead, he or she would ask: what is your rationale of changing the scale, is the change justified? What is the impact of changing?
"So tell me what is the problem?
"I am not part of the review team, but NOS is a reasonable candidate for assessing QUANTITATIVE, non-randomized studies such as cohort studies, pre-post studies. They originally planned to use a tool for mixed methodology — which arguably does not work well here.
"Even if Cass review were to stick to the original scale, the studies would still “not be high quality”. It is not ideal situation that systematic review authors make changes to their method, but reasonable people would agree we should not kill reviews because of plan changes.
"Even if Cass review were to stick to the original scale, the studies would still “not be high quality”. It is not ideal situation that systematic review authors make changes to their method, but reasonable people would agree we should not kill reviews because of plan changes."
experts.mcmaster.ca/display/zhang2
Dr. Zhang's tweets:
x.com/Real_Yuan24/st
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x.com/Real_Yuan24/st
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Benjamin Ryan
@benryanwriter
UCSF child psychiatrist Dr. Jack Turban, whose own published studies were deemed low quality by the systematic literature reviews on which the Cass Review was based, comes out swinging against both. Dr. Turban has staked his career on promoting youth gender medicine.
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