Conveying comparability
Or: do countries collate data differently or the same?
This is the last email to look at the UK TV Daily Covid Briefings. And fear not, I make no political pops, nor allege that governments deliberately present misleading data; rather, this email is solely on how to convey stuff.
Back on 29 April (seems like ages ago...), the UK Briefing showed a graph that compared total deaths to date for each of seven countries over time. Forget the graph though... rather, Figure 1 shows the words that were alongside the graph - they explain how each country collates its figures (I think it strives to be in descending order of deaths to date, albeit France shouldn't have been above Italy...?). And as seen from Figure 1, some countries count deaths with Covid-19, some from it. Some include care home deaths, some don’t. Comparability. It's an issue.
But so too is clarity. From Figure 1, we struggle to quickly see who’s probably ‘understating’ figures relative to others, and who’s ‘overstating’ them… we must read and memorise the words. And my, the words are similar. Almost repetitive. Yet also slightly different. It’s like the puzzles in newspapers where two similar pictures are shown side-by-side: “Can you spot the five differences?” (“Ah… that picture has 12 forks, the other just 11… that’s one difference!!”).
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