More or Less

How reliable is psychology science? The Reproducibility of Psychological Science project reported recently and it made grim reading. Having replicated 100 psychological studies published in three psychology journals only thirty six had significant results compared to 97% first time around. So is there a problem with psychological science and what should be done to fix it. Decimate Tim used the wor...

Alzheimers What's behind the claim that 1 in 3 people born in the UK this year could get Alzheimers? How reliable is the science in psychology? The Reproducibility of Psychological Science project reported recently and it made grim reading. Having replicated 100 psychological studies published in three psychology journals only thirty six had significant results compared to 97% first time around. S...

The average rugby pack is much bigger than it was 20 years ago but has the growth finally plateaued? Living Blue Planet Index Populations of marine mammals, birds, fish and reptiles have declined by 49% since 1970, a report says. But what does this actually mean?

Striking numbers? Are the unions really on the rise again and holding the country to ransom? The rise of the giants Are rugby players really getting biger and bigger? Living Blue Planet Index Populations of marine mammals, birds, fish and reptiles have declined by 49% since 1970, a report says. But what does this actually mean? Bean counter The Office for National Statistics is much maligned wheth...

Too dense Is population density the right measure to be looking at when working out how many refugees countries should take- and if not what is? How many bananas will kill you? There’s a belief among some people that too many bananas will kill you. Eat too many and you will overdose on potassium and die. But how many bananas would you need to eat?

Can you rely on non-voters During the election for the leadership of the Labour Party in the UK Jeremy Corbyn has whipped up unprecedented support among grass roots activists pushing him into a surprising lead. Bernie Sanders the left-wing Democratic candidate has done the same energised grass roots support in the United States in a similar way. Their supporters believe in both cases they can shak...

Queuing backwards Britons love to queue, but have we been getting it wrong? Lars Peter Osterdal from the University of Southern Denmark discusses his theory of how to make queuing more efficient. Thinking Like an Engineer Engineer Guru Madhavan tells the story of the development of the barcode and argues that those making policy should ask engineers as well as economists about solving social probl...

Deaths of people 'fit for work' Thousands of people are dying after being declared 'fit for work' by the government according to the Guardian. The figures are from a long awaited freedom of information release from the Department for Work and Pensions. But do the figures actually tell us anything? More or Less investigates. Sugar Sugar has had a pretty bad press over the last few months and seems...

The Chinese Market Crash in context. How big is the market, how many investors does it have and does it tell us anything about the wider Chinese economy? Sprinters legs It may seem strange, but world class runners don’t move their legs faster than average park runner. That’s the claim anyway – is it true and if so what is it that makes athletes like Usain Bolt and Justin Gatlin run so fast?

The Chinese Market Crash in context. How big is the market, how many investors does it have and does it tell us anything about the wider Chinese economy? Eight Million Foreigners Are there really eight million foreigners in the UK? What does 95% less harmful actually mean? E-cigarettes are 95% less harmful than ordinary cigarettes according to last week's report by Public Health England. But what...

Loop The ancient Greeks saw magic in the geometry of an ellipse and now mathematical writer Alex Bellos has put this to use in a specially designed table for a specially designed game of pool. Premier League predictions If a martian came to earth wanting to know where each team would finish in the English Premier League this season where should he go to get the most accurate prediction?

Diabetes We heard earlier this week that there had been a 60% rise in the number of cases of diabetes in the last ten years. But is there actually some good news in these figures? Odd (attempted) burglaries Police in Leicestershire have been only sending forensic teams to attempted burglaries at houses with even numbers. The papers reported it as a scandal driven by money saving. But is it a scand...

A debate has been raging over the last month about the benefits of mass deworming projects. Hugely popular with the UN and charities, the evidence behind the practice has come under attack. Are the criticisms justified? We hear from the different sides – both economists and epidemiologists and their approach to the numbers. Football predictions How useful are football predictions and should we alw...

Migrant Crisis There is a "swarm" of migrants coming into Europe according to the Prime Minister. Where are they coming from and how many are coming to Calais to try to get into Britain? Are 70 percent of migrants in Calais making it to the UK, as claimed in the Daily Mail? We scrutinise the numbers. Worm wars A debate has been raging over the last month about the benefits of mass deworming projec...

Following the recent death of wrestler "Rowdy" Roddy Piper we ask if wrestlers are more likely to die young. We explore why that might be and how they compare to athletes from other sports. Plus - is Nigeria the largest consumer of champagne in the world after France?

It has been reported that as many as 20,000 foreign fighters have joined militants in the Middle East and that they make up around 10% of ISIS. Wesley Stephenson and Federica Cocco look at the numbers behind those claims and examine where those fighting in places like Syria and Iraq come from.

Ruth Alexander and the team return to the question of how long you might live. Those born today are expected to live six and a half years longer than those born in 1990 but can this trend continue?

Its ten years since some of the world’s richest nations met in Gleneagles, Scotland. It was there that the G8 agreed to improve trade with developing nations, increase aid, and to wipe the debt of some of the poorest countries. The agreement followed Live 8 where the likes of Bono and Bob Geldof demanded that they ‘Make Poverty History’. Wesley Stephenson and the More or Less team look at what has...

Is it true that Greece failed to collect 89% of taxes in 2010? Tim Harford and the More or Less team look at the numbers behind the tax system and the other statistics used to tell the story of the Greek crisis. Which ones are home truths and which ones are myths.

The film Jurassic World broke the record for the biggest opening weekend taking $511m. It’s a record that has been broken once already this year and most of the top ten films with the biggest opening weekends were released in the last five years. So in an age where the competition is fierce for cinemas why are these films doing so well? Bees and the British Royal Family For reasons best known to t...

Can your horoscope predict which diseases you’ll develop? And does cricket’s Duckworth-Lewis method need to evolve?

Global Footprint We’re often told that we consume so much that we need one and a half planets. It comes from the Global Footprint Network a think-tank that has pioneered ecological foot-printing but what does that number even mean, and is it helpful? Chocolate makes you thinner We tell the story behind the chocolate experiment designed to deliberately fool the press. Concerned about the amount of...

It's the last in the series so we're packing in the statistical goodies so that you can go into numerical hibernation until August. We're looking at the street value of drugs: when police claim that they've confiscated hundreds of millions of pounds worth of narcotics, where do those numbers come from? And how has the dark internet changed drug prices? We'll also be looking at claims that those of...

Tim Harford asks if the World Cup is to blame for migrant deaths in Qatar. And we solve the fiendish maths exam question that baffled students so much it became a trend on Twitter.

Tim Harford asks if the World Cup is really responsible for migrant deaths in Qatar.