Title |
How to find nothing
|
---|---|
Published in |
Journal of Public Health Policy, October 2009
|
DOI | 10.1057/jphp.2009.26 |
Pubmed ID | |
Authors |
David Hemenway |
Abstract |
Hypothesis testing can be misused and misinterpreted in various ways. Limitations in the research design, for example, can make it almost impossible to reject the null hypothesis that a policy has no effect. This article discusses two examples of such experimental designs and analyses, in which, unfortunately, the researchers touted their null results as strong evidence of no effect. |
X Demographics
The data shown below were collected from the profiles of 9 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 2 | 22% |
Kenya | 1 | 11% |
Australia | 1 | 11% |
Germany | 1 | 11% |
Unknown | 4 | 44% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 7 | 78% |
Scientists | 2 | 22% |
Mendeley readers
The data shown below were compiled from readership statistics for 18 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 18 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Master | 7 | 39% |
Other | 2 | 11% |
Student > Postgraduate | 2 | 11% |
Student > Ph. D. Student | 2 | 11% |
Student > Bachelor | 1 | 6% |
Other | 3 | 17% |
Unknown | 1 | 6% |
Readers by discipline | Count | As % |
---|---|---|
Social Sciences | 7 | 39% |
Medicine and Dentistry | 3 | 17% |
Psychology | 2 | 11% |
Nursing and Health Professions | 1 | 6% |
Agricultural and Biological Sciences | 1 | 6% |
Other | 3 | 17% |
Unknown | 1 | 6% |
Attention Score in Context
This research output has an Altmetric Attention Score of 23. 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 September 2022.
All research outputs
#1,595,957
of 24,612,602 outputs
Outputs from Journal of Public Health Policy
#73
of 837 outputs
Outputs of similar age
#4,570
of 98,148 outputs
Outputs of similar age from Journal of Public Health Policy
#2
of 6 outputs
Altmetric has tracked 24,612,602 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 837 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 13.5. This one has done particularly well, scoring higher than 91% 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 98,148 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 95% of its contemporaries.
We're also able to compare this research output to 6 others from the same source and published within six weeks on either side of this one. This one has scored higher than 4 of them.