Statistical crimes and the media

Written By: - Date published: 1:44 pm, April 11th, 2009 - 8 comments
Categories: crime, Media - Tags:

You might have noticed that there was none of the traditional beat-up over crime when the crime statistics came out last week even though reported crime was up 1.2%. The reason is pretty obvious. The right is on power now, so National, the Sensible Sentencing Trust, and the Herald have no interest in trying to generate public fear of crime and with it anti-government feeling.

Nonetheless, it did provide an opportunity for some journalists to display their problems with basic statistics. Take this mess from Stuff and NZPA:

“Violent crime in New Zealand continues to rise, largely driven by increasing family violence.

Across the region there were 1,200 less crimes in total recorded. That means every day last year three less people were affected by crime than in 2007.

Auckland City recorded the biggest decrease in total crime with four per cent fewer offences last year

One in every 10 Aucklanders is likely to experience a crime of some sort most of those unlucky ones being victims of burglary….

…just 760 people in every 10,000 being hit by crime”

Of course, it should read “1,200 fewer crimes” but the innumeracy is worse than the literacy.

Not all crimes that happen are recorded. So an increase in the number of recorded violent offences does not necessarily mean the number of actual violent offences increased. All the journalists had to do was add the word “recorded” twice to their first sentence to make it correct.

Likewise, 1,200 fewer crimes being recorded does not mean 1,200 fewer occurred. There may have been more, the same amount, even fewer or anything in between. So we cannot say “that means X” about the actual impact of crime. We certainly can’t say “that means every day three less (sic) people were affected by crime”. 1,200 goes into 365 3.3, not 3, times. Many offences ‘affect’ more than one person. Many offences occur as part of one criminal act and so ‘affect’ the same person(s) at the same time.All of which means we can have no idea how many more or fewer people were affected by crime in the last year.

To top it off, even if the reduction were three a day on average that’s completely different to saying three fewer every day as the article does. On some days there could be more than three fewer  offences, on other days there could be less than three fewer or even more offences.

The crime rate in Auckland may be around 1000 recorded offences per 10,000 population but that does not mean one in every ten Aucklanders is likely to experience crime. Most crimes are experienced by a few people, who are victimised multiple times in a single criminal act and, often, repeatedly during a year. On the flip side, many crimes have more than one victim. So, again, just because the number of recorded crimes or rate of crime is known does not mean have any idea of the number of victims or rate of victimisation.

Even if the one in ten figure were correct, it wouldn’t mean “one in every 10” as the article states. Some randomly selected groups of ten would have more than one victim, others would have none. Same goes for “760 people in every 10,000”.

If journalists don’t understand statistics, they shouldn’t try to play fancy and pointless games with them. To the informed it merely reveals the journalists’ ignorance. For people who don’t know any better, the journalists just sows misinformation and misunderstanding.

the mathemagician

8 comments on “Statistical crimes and the media ”

  1. Ag 1

    I honestly don’t know why we bother with a free press.

  2. Rex Widerstrom 2

    That pottage of ignorance is a perfect indicator of the reason that, as an editor, I used to sort applications for reporting jobs into two piles – those who’d attended the majority of “journalism courses” and those who hadn’t. Then rejection letters would be sent to the former.

    There are notable exceptions, of course, but nowhere is the maxim “those who can do, those who can’t teach” better illustrated than in the preparation of young would-be journalists for a career writing just this sort of story.

    It used to be that subs and editors would leap on this stuff. Now stories are rarely subbed for anything but length, never accuracy, and editors seem to be employed to deal only with falling circulations and raising advertising costs (never realising, all the while, that the drivel passing under their noses and into their publications is a primary cause of the former).

    • BLiP 2.1

      A blast from the past (and off topic to boot) – are the the same RW what run a radio station in Wainuiomata briefly back in the early 80’s?

      • Rex Widerstrom 2.1.1

        Ye gods, I’ll never escape my past 😉 .

        Yes. Several in fact – Radio Alpha, Radio n, 2XK and Festival Radio. I believe I’m the only RW in the world, alas – and thus all triumphs and tragedies associated with the name can be sheeted home to me, damnit.

        captcha: Ramshackle Historie. Ain’t that the truth!

  3. BLiP 3

    Ahhhh – its all coming back to me now. Fond memories only, mate.

  4. John Dalley 4

    The trouble with statistics, is they are only as good as the information supplied.
    I always find it intriguing when it’s claimed we have the highest pregnancy or highest this or that in the world but you are assuming that the collection of data in other countries is as good or better that NZ.
    I would think that reprting of overseas date could be suspect at times!

  5. BLiP 5

    Whenever it comes to statistics one’s first consideration should be; “who is speaking and what is their agenda.”

  6. the sprout 6

    also on the topic of journalists’ rampant inumeracy there’s this great piece from Keith Ng

    http://publicaddress.net/system/topic,1724,onpoint_wrong_wronger_wrongerest.sm

Recent Comments

Recent Posts

  • Anzac Commemorative Address – NZ National Service, Chunuk Bair
    Distinguished guests -   It is an honour to return once again to this site which, as the resting place for so many of our war-dead, has become a sacred place for generations of New Zealanders.   Our presence here and at the other special spaces of Gallipoli is made ...
    BeehiveBy beehive.govt.nz
    17 hours ago
  • Anzac Commemorative Address – Dawn Service, Gallipoli, Türkiye
    Mai ia tawhiti pamamao, te moana nui a Kiwa, kua tae whakaiti mai matou, ki to koutou papa whenua. No koutou te tapuwae, no matou te tapuwae, kua honoa pumautia.   Ko nga toa kua hinga nei, o te Waipounamu, o te Ika a Maui, he okioki tahi me o ...
    BeehiveBy beehive.govt.nz
    23 hours ago
  • PM announces changes to portfolios
    Paul Goldsmith will take on responsibility for the Media and Communications portfolio, while Louise Upston will pick up the Disability Issues portfolio, Prime Minister Christopher Luxon announced today. “Our Government is relentlessly focused on getting New Zealand back on track. As issues change in prominence, I plan to adjust Ministerial ...
    BeehiveBy beehive.govt.nz
    2 days ago
  • New catch limits for unique fishery areas
    Recreational catch limits will be reduced in areas of Fiordland and the Chatham Islands to help keep those fisheries healthy and sustainable, Oceans and Fisheries Minister Shane Jones says. The lower recreational daily catch limits for a range of finfish and shellfish species caught in the Fiordland Marine Area and ...
    BeehiveBy beehive.govt.nz
    2 days ago
  • Minister welcomes hydrogen milestone
    Energy Minister Simeon Brown has welcomed an important milestone in New Zealand’s hydrogen future, with the opening of the country’s first network of hydrogen refuelling stations in Wiri. “I want to congratulate the team at Hiringa Energy and its partners K one W one (K1W1), Mitsui & Co New Zealand ...
    BeehiveBy beehive.govt.nz
    3 days ago
  • Urgent changes to system through first RMA Amendment Bill
    The coalition Government is delivering on its commitment to improve resource management laws and give greater certainty to consent applicants, with a Bill to amend the Resource Management Act (RMA) expected to be introduced to Parliament next month. RMA Reform Minister Chris Bishop has today outlined the first RMA Amendment ...
    BeehiveBy beehive.govt.nz
    3 days ago
  • Overseas decommissioning models considered
    Overseas models for regulating the oil and gas sector, including their decommissioning regimes, are being carefully scrutinised as a potential template for New Zealand’s own sector, Resources Minister Shane Jones says. The Coalition Government is focused on rebuilding investor confidence in New Zealand’s energy sector as it looks to strengthen ...
    BeehiveBy beehive.govt.nz
    3 days ago
  • Release of North Island Severe Weather Event Inquiry
    Emergency Management and Recovery Minister Mark Mitchell has today released the Report of the Government Inquiry into the response to the North Island Severe Weather Events. “The report shows that New Zealand’s emergency management system is not fit-for-purpose and there are some significant gaps we need to address,” Mr Mitchell ...
    BeehiveBy beehive.govt.nz
    3 days ago
  • Justice Minister to attend Human Rights Council
    Justice Minister Paul Goldsmith is today travelling to Europe where he’ll update the United Nations Human Rights Council on the Government’s work to restore law and order.  “Attending the Universal Periodic Review in Geneva provides us with an opportunity to present New Zealand’s human rights progress, priorities, and challenges, while ...
    BeehiveBy beehive.govt.nz
    4 days ago
  • Patterson reopens world’s largest wool scouring facility
    Associate Agriculture Minister, Mark Patterson, formally reopened the world’s largest wool processing facility today in Awatoto, Napier, following a $50 million rebuild and refurbishment project. “The reopening of this facility will significantly lift the economic opportunities available to New Zealand’s wool sector, which already accounts for 20 per cent of ...
    BeehiveBy beehive.govt.nz
    4 days ago
  • Speech to the Southland Otago Regional Engineering Collective Summit, 18 April 2024
    Hon Andrew Bayly, Minister for Small Business and Manufacturing  At the Southland Otago Regional Engineering Collective (SOREC) Summit, 18 April, Dunedin    Ngā mihi nui, Ko Andrew Bayly aho, Ko Whanganui aho    Good Afternoon and thank you for inviting me to open your summit today.    I am delighted ...
    BeehiveBy beehive.govt.nz
    4 days ago
  • Government to introduce revised Three Strikes law
    The Government is delivering on its commitment to bring back the Three Strikes legislation, Associate Justice Minister Nicole McKee announced today. “Our Government is committed to restoring law and order and enforcing appropriate consequences on criminals. We are making it clear that repeat serious violent or sexual offending is not ...
    BeehiveBy beehive.govt.nz
    4 days ago
  • New diplomatic appointments
    Foreign Minister Winston Peters has today announced four new diplomatic appointments for New Zealand’s overseas missions.   “Our diplomats have a vital role in maintaining and protecting New Zealand’s interests around the world,” Mr Peters says.    “I am pleased to announce the appointment of these senior diplomats from the ...
    BeehiveBy beehive.govt.nz
    4 days ago
  • Humanitarian support for Ethiopia and Somalia
    New Zealand is contributing NZ$7 million to support communities affected by severe food insecurity and other urgent humanitarian needs in Ethiopia and Somalia, Foreign Minister Rt Hon Winston Peters announced today.   “Over 21 million people are in need of humanitarian assistance across Ethiopia, with a further 6.9 million people ...
    BeehiveBy beehive.govt.nz
    4 days ago
  • Arts Minister congratulates Mataaho Collective
    Minister for Arts, Culture and Heritage Paul Goldsmith is congratulating Mataaho Collective for winning the Golden Lion for best participant in the main exhibition at the Venice Biennale. "Congratulations to the Mataaho Collective for winning one of the world's most prestigious art prizes at the Venice Biennale.  “It is good ...
    BeehiveBy beehive.govt.nz
    5 days ago
  • Supporting better financial outcomes for Kiwis
    The Government is reforming financial services to improve access to home loans and other lending, and strengthen customer protections, Commerce and Consumer Affairs Minister Andrew Bayly and Housing Minister Chris Bishop announced today. “Our coalition Government is committed to rebuilding the economy and making life simpler by cutting red tape. We are ...
    BeehiveBy beehive.govt.nz
    5 days ago
  • Trade relationship with China remains strong
    “China remains a strong commercial opportunity for Kiwi exporters as Chinese businesses and consumers continue to value our high-quality safe produce,” Trade and Agriculture Minister Todd McClay says.   Mr McClay has returned to New Zealand following visits to Beijing, Harbin and Shanghai where he met ministers, governors and mayors and engaged in trade and agricultural events with the New ...
    BeehiveBy beehive.govt.nz
    5 days ago
  • PM’s South East Asia mission does the business
    Prime Minister Christopher Luxon has completed a successful trip to Singapore, Thailand and the Philippines, deepening relationships and capitalising on opportunities. Mr Luxon was accompanied by a business delegation and says the choice of countries represents the priority the New Zealand Government places on South East Asia, and our relationships in ...
    BeehiveBy beehive.govt.nz
    6 days ago
  • $41m to support clean energy in South East Asia
    New Zealand is demonstrating its commitment to reducing global greenhouse emissions, and supporting clean energy transition in South East Asia, through a contribution of NZ$41 million (US$25 million) in climate finance to the Asian Development Bank (ADB)-led Energy Transition Mechanism (ETM). Prime Minister Christopher Luxon and Climate Change Minister Simon Watts announced ...
    BeehiveBy beehive.govt.nz
    7 days ago
  • Minister releases Fast-track stakeholder list
    The Government is today releasing a list of organisations who received letters about the Fast-track applications process, says RMA Reform Minister Chris Bishop. “Recently Ministers and agencies have received a series of OIA requests for a list of organisations to whom I wrote with information on applying to have a ...
    BeehiveBy beehive.govt.nz
    7 days ago
  • Judicial appointments announced
    Attorney-General Judith Collins today announced the appointment of Wellington Barrister David Jonathan Boldt as a Judge of the High Court, and the Honourable Justice Matthew Palmer as a Judge of the Court of Appeal. Justice Boldt graduated with an LLB from Victoria University of Wellington in 1990, and also holds ...
    BeehiveBy beehive.govt.nz
    1 week ago
  • Education Minister heads to major teaching summit in Singapore
    Education Minister Erica Stanford will lead the New Zealand delegation at the 2024 International Summit on the Teaching Profession (ISTP) held in Singapore. The delegation includes representatives from the Post Primary Teachers’ Association (PPTA) Te Wehengarua and the New Zealand Educational Institute (NZEI) Te Riu Roa.  The summit is co-hosted ...
    BeehiveBy beehive.govt.nz
    1 week ago
  • Value of stopbank project proven during cyclone
    A stopbank upgrade project in Tairawhiti partly funded by the Government has increased flood resilience for around 7000ha of residential and horticultural land so far, Regional Development Minister Shane Jones says. Mr Jones today attended a dawn service in Gisborne to mark the end of the first stage of the ...
    BeehiveBy beehive.govt.nz
    1 week ago
  • Anzac commemorations, Türkiye relationship focus of visit
    Foreign Affairs Minister Winston Peters will represent the Government at Anzac Day commemorations on the Gallipoli Peninsula next week and engage with senior representatives of the Turkish government in Istanbul.    “The Gallipoli campaign is a defining event in our history. It will be a privilege to share the occasion ...
    BeehiveBy beehive.govt.nz
    1 week ago
  • Minister to Europe for OECD meeting, Anzac Day
    Science, Innovation and Technology and Defence Minister Judith Collins will next week attend the OECD Science and Technology Ministerial conference in Paris and Anzac Day commemorations in Belgium. “Science, innovation and technology have a major role to play in rebuilding our economy and achieving better health, environmental and social outcomes ...
    BeehiveBy beehive.govt.nz
    1 week ago
  • Comprehensive Partnership the goal for NZ and the Philippines
    Prime Minister Christopher Luxon held a bilateral meeting today with the President of the Philippines, Ferdinand Marcos Jr.  The Prime Minister was accompanied by MP Paulo Garcia, the first Filipino to be elected to a legislature outside the Philippines. During today’s meeting, Prime Minister Luxon and President Marcos Jr discussed opportunities to ...
    BeehiveBy beehive.govt.nz
    1 week ago
  • Government commits $20m to Westport flood protection
    The Government has announced that $20 million in funding will be made available to Westport to fund much needed flood protection around the town. This measure will significantly improve the resilience of the community, says Local Government Minister Simeon Brown. “The Westport community has already been allocated almost $3 million ...
    BeehiveBy beehive.govt.nz
    1 week ago
  • Taupō takes pole position
    The Government is proud to support the first ever Repco Supercars Championship event in Taupō as up to 70,000 motorsport fans attend the Taupō International Motorsport Park this weekend, says Economic Development Minister Melissa Lee. “Anticipation for the ITM Taupō Super400 is huge, with tickets and accommodation selling out weeks ...
    BeehiveBy beehive.govt.nz
    1 week ago
  • Cost of living support for low-income homeowners
    Local Government Minister Simeon Brown has announced an increase to the Rates Rebate Scheme, putting money back into the pockets of low-income homeowners.  “The coalition Government is committed to bringing down the cost of living for New Zealanders. That includes targeted support for those Kiwis who are doing things tough, such ...
    BeehiveBy beehive.govt.nz
    1 week ago
  • Government backing mussel spat project
    The Coalition Government is investing in a project to boost survival rates of New Zealand mussels and grow the industry, Oceans and Fisheries Minister Shane Jones has announced. “This project seeks to increase the resilience of our mussels and significantly boost the sector’s productivity,” Mr Jones says. “The project - ...
    BeehiveBy beehive.govt.nz
    1 week ago
  • Government focused on getting people into work
    Benefit figures released today underscore the importance of the Government’s plan to rebuild the economy and have 50,000 fewer people on Jobseeker Support, Social Development and Employment Minister Louise Upston says. “Benefit numbers are still significantly higher than when National was last in government, when there was about 70,000 fewer ...
    BeehiveBy beehive.govt.nz
    1 week ago
  • Clean energy key driver to reducing emissions
    The Government’s commitment to doubling New Zealand’s renewable energy capacity is backed by new data showing that clean energy has helped the country reach its lowest annual gross emissions since 1999, Climate Change Minister Simon Watts says. New Zealand’s latest Greenhouse Gas Inventory (1990-2022) published today, shows gross emissions fell ...
    BeehiveBy beehive.govt.nz
    1 week ago
  • Earthquake-prone buildings review brought forward
    The Government is bringing the earthquake-prone building review forward, with work to start immediately, and extending the deadline for remediations by four years, Building and Construction Minister Chris Penk says. “Our Government is focused on rebuilding the economy. A key part of our plan is to cut red tape that ...
    BeehiveBy beehive.govt.nz
    1 week ago
  • Thailand and NZ to agree to Strategic Partnership
    Prime Minister Christopher Luxon and his Thai counterpart, Prime Minister Srettha Thavisin, have today agreed that New Zealand and the Kingdom of Thailand will upgrade the bilateral relationship to a Strategic Partnership by 2026. “New Zealand and Thailand have a lot to offer each other. We have a strong mutual desire to build ...
    BeehiveBy beehive.govt.nz
    1 week ago
  • Government consults on extending coastal permits for ports
    RMA Reform Minister Chris Bishop and Transport Minister Simeon Brown have today announced the Coalition Government’s intention to extend port coastal permits for a further 20 years, providing port operators with certainty to continue their operations. “The introduction of the Resource Management Act in 1991 required ports to obtain coastal ...
    BeehiveBy beehive.govt.nz
    1 week ago
  • Inflation coming down, but more work to do
    Today’s announcement that inflation is down to 4 per cent is encouraging news for Kiwis, but there is more work to be done - underlining the importance of the Government’s plan to get the economy back on track, acting Finance Minister Chris Bishop says. “Inflation is now at 4 per ...
    BeehiveBy beehive.govt.nz
    1 week ago
  • School attendance restored as a priority in health advice
    Refreshed health guidance released today will help parents and schools make informed decisions about whether their child needs to be in school, addressing one of the key issues affecting school attendance, says Associate Education Minister David Seymour. In recent years, consistently across all school terms, short-term illness or medical reasons ...
    BeehiveBy beehive.govt.nz
    1 week ago
  • Unnecessary bureaucracy cut in oceans sector
    Oceans and Fisheries Minister Shane Jones is streamlining high-level oceans management while maintaining a focus on supporting the sector’s role in the export-led recovery of the economy. “I am working to realise the untapped potential of our fishing and aquaculture sector. To achieve that we need to be smarter with ...
    BeehiveBy beehive.govt.nz
    1 week ago
  • Opinion: It’s time for an arts and creative sector strategy
    I was initially resistant to the idea often suggested to me that the Government should deliver an arts strategy. The whole point of the arts and creativity is that people should do whatever the hell they want, unbound by the dictates of politicians in Wellington. Peter Jackson, Kiri Te Kanawa, Eleanor ...
    BeehiveBy beehive.govt.nz
    1 week ago
  • Patterson promoting NZ’s wool sector at International Congress
    Associate Agriculture Minister Mark Patterson is speaking at the International Wool Textile Organisation Congress in Adelaide, promoting New Zealand wool, and outlining the coalition Government’s support for the revitalisation the sector.    "New Zealand’s wool exports reached $400 million in the year to 30 June 2023, and the coalition Government ...
    BeehiveBy beehive.govt.nz
    1 week ago

Page generated in The Standard by Wordpress at 2024-04-26T01:38:15+00:00