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Sample size requirements to estimate key design parameters from external pilot randomised controlled trials: a simulation study

Overview of attention for article published in Trials, July 2014
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About this Attention Score

  • In the top 25% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (92nd percentile)

Mentioned by

twitter
32 tweeters
googleplus
1 Google+ user

Citations

dimensions_citation
251 Dimensions

Readers on

mendeley
444 Mendeley
citeulike
3 CiteULike
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Title
Sample size requirements to estimate key design parameters from external pilot randomised controlled trials: a simulation study
Published in
Trials, July 2014
DOI 10.1186/1745-6215-15-264
Pubmed ID
Authors

M Dawn Teare, Munyaradzi Dimairo, Neil Shephard, Alex Hayman, Amy Whitehead, Stephen J Walters

Abstract

External pilot or feasibility studies can be used to estimate key unknown parameters to inform the design of the definitive randomised controlled trial (RCT). However, there is little consensus on how large pilot studies need to be, and some suggest inflating estimates to adjust for the lack of precision when planning the definitive RCT.

Twitter Demographics

The data shown below were collected from the profiles of 32 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 444 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United Kingdom 5 1%
Malaysia 1 <1%
Spain 1 <1%
Unknown 437 98%

Demographic breakdown

Readers by professional status Count As %
Researcher 89 20%
Student > Ph. D. Student 74 17%
Student > Master 47 11%
Student > Bachelor 41 9%
Other 23 5%
Other 82 18%
Unknown 88 20%
Readers by discipline Count As %
Medicine and Dentistry 95 21%
Psychology 61 14%
Nursing and Health Professions 49 11%
Social Sciences 30 7%
Business, Management and Accounting 17 4%
Other 77 17%
Unknown 115 26%

Attention Score in Context

This research output has an Altmetric Attention Score of 21. 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 05 May 2022.
All research outputs
#1,385,096
of 21,152,972 outputs
Outputs from Trials
#394
of 5,391 outputs
Outputs of similar age
#14,885
of 202,703 outputs
Outputs of similar age from Trials
#1
of 1 outputs
Altmetric has tracked 21,152,972 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 93rd percentile: it's in the top 10% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 5,391 research outputs from this source. They typically receive more attention than average, with a mean Attention Score of 7.8. This one has done particularly well, scoring higher than 92% 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 202,703 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 92% of its contemporaries.
We're also able to compare this research output to 1 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