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Overstating the evidence – double counting in meta-analysis and related problems

Overview of attention for article published in BMC Medical Research Methodology, February 2009
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About this Attention Score

  • In the top 5% of all research outputs scored by Altmetric
  • Among the highest-scoring outputs from this source (#38 of 2,354)
  • High Attention Score compared to outputs of the same age (99th percentile)
  • High Attention Score compared to outputs of the same age and source (87th percentile)

Mentioned by

blogs
2 blogs
policy
1 policy source
twitter
136 X users
facebook
1 Facebook page
wikipedia
1 Wikipedia page

Citations

dimensions_citation
145 Dimensions

Readers on

mendeley
114 Mendeley
citeulike
2 CiteULike
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Title
Overstating the evidence – double counting in meta-analysis and related problems
Published in
BMC Medical Research Methodology, February 2009
DOI 10.1186/1471-2288-9-10
Pubmed ID
Authors

Stephen J Senn

X Demographics

X Demographics

The data shown below were collected from the profiles of 136 X users who shared this research output. Click here to find out more about how the information was compiled.
Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 114 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United Kingdom 3 3%
Netherlands 2 2%
South Africa 1 <1%
Canada 1 <1%
Peru 1 <1%
Unknown 106 93%

Demographic breakdown

Readers by professional status Count As %
Researcher 26 23%
Student > Ph. D. Student 24 21%
Student > Master 10 9%
Professor 7 6%
Student > Bachelor 7 6%
Other 28 25%
Unknown 12 11%
Readers by discipline Count As %
Medicine and Dentistry 48 42%
Psychology 10 9%
Agricultural and Biological Sciences 7 6%
Mathematics 7 6%
Social Sciences 6 5%
Other 18 16%
Unknown 18 16%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 92. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 10 April 2024.
All research outputs
#482,179
of 26,124,608 outputs
Outputs from BMC Medical Research Methodology
#38
of 2,354 outputs
Outputs of similar age
#1,429
of 193,262 outputs
Outputs of similar age from BMC Medical Research Methodology
#1
of 8 outputs
Altmetric has tracked 26,124,608 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 98th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 2,354 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 10.6. This one has done particularly well, scoring higher than 98% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 193,262 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 99% of its contemporaries.
We're also able to compare this research output to 8 others from the same source and published within six weeks on either side of this one. This one has scored higher than all of them