Citations are perfect indicators of citation, readership is a (semi) perfect indicator of readership, but what constitutes good science?
Haustein, S. (2014). Readership metrics. In B. Cronin & C.R. Sugimoto (Eds.), Beyond bibliometrics: Metrics-based evaluation of research (pages tbd). Boston, MA: MIT Press.
Haustein argues that citation-based metrics for journals fail to capture information about the âpure readershipâ of publicationsâthus missing many instances of âimpactââinstances which are better measurable by altmetrics. The question of whether to include these readers in the judgment of science returns to an argument we have also had about citations themselvesâthat bad science gets cited negatively. Research has shown that wholly negative citations are exceedingly rare, but itâs likely that bad research is much, much more often read than it is cited. Therefore, it could be problematic to include readership and access data in metrics that will, undoubtedly, be co-opted to assign concrete value measurements to science.
Interestlingly, Haustein points to the work of librarians in collection decisions to support her readership metrics argument. Although undoubtedly readership should be included in collection management decisions, those decisions are rare now that big deals and approval plans account for the vast majority of purchases in under-staffed or over-extended libraries.
Haustein seems to focus on the incompleteness of traditional data (citations donât show readership) but I would argue that readership and impact are not as synonymous as her assumptions make them out to be. Surely many scientists read and are impacted by research from fields other than their own and often donât cite that workâbut this is a failure on the part of the researchers since those same connections could be vital to others who read the output that inter-disciplinary exposure inspires. It may be more effective to encourage stronger citation habits than simply counting readers because readers might come to a paper for any reason, but scientists will generally only cite work that contributes to and directly impacts science. If unique download counts are used to measure science, the mediocre author of ten mediocre papers who teaches Chemistry 100 to several hundred students each semester could vastly inflate his own impact scores by simply assigning readings for his tests. Certainly readership information is indicative of readership; but does it really tell us how impactful a paper is?
Houstein points out a similar weakness for altmetrics in generalâthe amount of data we have belies our ignorance about its meaning. HTML views may indicate abstract checking by a librarian who reads hundreds of abstracts to find the best resources for a subject guide (and it may be that hundreds of librarians are doing the same work), producing massively inflated metrics that tell a wildly inaccurate storyâthese cases certainly wonât represent the majority of accesses, but they illustrate that we will not know in most cases what the data means. Haustein is quick to point out that these same limitations exist with citationsâbut citations are simply more difficult to make than HTML views (and the numbers for altmetrics could inflate much more quickly than citations would be able to). It should also be noted that publishers could also hide minor information behind an extra click so that checking a citation constitutions an HTML view (or any other manipulative trick) that could artificially inflate altmetrics significantly.






