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Mendeley readers
Attention Score in Context
| Title |
Exploring differential item functioning in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC)
|
|---|---|
| Published in |
BMC Musculoskeletal Disorders, December 2012
|
| DOI | 10.1186/1471-2474-13-265 |
| Pubmed ID | |
| Authors |
Beth Pollard, Marie Johnston, Diane Dixon |
| Abstract |
The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) is a widely used patient reported outcome in osteoarthritis. An important, but frequently overlooked, aspect of validating health outcome measures is to establish if items exhibit differential item functioning (DIF). That is, if respondents have the same underlying level of an attribute, does the item give the same score in different subgroups or is it biased towards one subgroup or another. The aim of the study was to explore DIF in the Likert format WOMAC for the first time in a UK osteoarthritis population with respect to demographic, social, clinical and psychological factors. |
Mendeley readers
The data shown below were compiled from readership statistics for 63 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Nigeria | 1 | 2% |
| Unknown | 62 | 98% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Master | 11 | 17% |
| Student > Postgraduate | 7 | 11% |
| Researcher | 6 | 10% |
| Student > Doctoral Student | 6 | 10% |
| Other | 5 | 8% |
| Other | 10 | 16% |
| Unknown | 18 | 29% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 18 | 29% |
| Nursing and Health Professions | 7 | 11% |
| Biochemistry, Genetics and Molecular Biology | 4 | 6% |
| Psychology | 4 | 6% |
| Agricultural and Biological Sciences | 2 | 3% |
| Other | 11 | 17% |
| Unknown | 17 | 27% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. 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 02 January 2013.
All research outputs
#20,178,031
of 22,691,736 outputs
Outputs from BMC Musculoskeletal Disorders
#3,610
of 4,027 outputs
Outputs of similar age
#248,381
of 280,252 outputs
Outputs of similar age from BMC Musculoskeletal Disorders
#87
of 102 outputs
Altmetric has tracked 22,691,736 research outputs across all sources so far. This one is in the 1st percentile – i.e., 1% of other outputs scored the same or lower than it.
So far Altmetric has tracked 4,027 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 7.0. This one is in the 1st percentile – i.e., 1% of its peers scored the same or lower than it.
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 280,252 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 1st percentile – i.e., 1% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 102 others from the same source and published within six weeks on either side of this one. This one is in the 1st percentile – i.e., 1% of its contemporaries scored the same or lower than it.