The Claim
In highly cited meta-analyses of strength and conditioning research, 85% contained at least one of five identifiable statistical errors: misuse of standard error instead of standard deviation, failure to account for correlated observations, lack of study weighting, focus on within-group rather than between-group effects, and inclusion of implausible effect sizes greater than 3.0.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
A big review found that in most top-rated studies about strength and fitness training, about 85% made at least one common math mistake—like using the wrong numbers to show results or including results that seem way too extreme.
See the scientific wording
In highly cited meta-analyses of strength and conditioning research, 85% contained at least one of five identifiable statistical errors, including misuse of standard error instead of standard deviation, failure to account for correlated observations, lack of study weighting, focus on within-group rather than between-group effects, and inclusion of implausible effect sizes greater than 3.0.
What the research says
1 studyThis study checked the most popular science reviews in strength and conditioning and found that 85% of them made at least one of five common math mistakes—exactly what the claim says.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.