Category Archives: News & research

A standardized citation metric

Scientific impact is a difficult thing to measure. Nevertheless, a variety of indexes and metrics have been created that attempt to quantify it. Many of these measures are based on citations: the number of times a scientific paper is referenced by another scientific paper. Unfortunately, it is not entirely clear what these citation-based metrics actually reflect, nor is it clear

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Preparing computer code for peer-review: Nature journal guidelines

Computer code is used to analyse data in research studies across many fields including epidemiology, biomedical science, computational biology and physics. Many findings now depend on such analyses. What role do journals play in ensuring transparency and reproducibility of computer code used to generate research findings? How might this fit in with our efforts, as scientists, to reduce errors in

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Understanding interaction (subgroup) analysis in randomised studies

When we try to interpret findings from a study, we often like to understand whether an effect (of a treatment or test condition) might be different in subjects with different characteristics. If there was substantial variability among subjects, this may have masked a treatment effect in a select few. How can we understand effects in select groups of subjects that

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