• Blog home
  • Elections
  • Polling
  • Sport
  • Weather
  • Forecasting
  • Diversity
  • Stats Training
  • Misc
  • Archive
  • Twitter
  • Back to Marriott Statistical Consulting

Nigel Marriott's Blog

An independent statistician using data to understand our world and to predict the future

You are here: Home / Forecasting

UK Opinion Poll Tracker #4 – My Welsh Barometer Poll Forecast Was Correct!

April 24, 2017 By Nigel

If you are familiar with my UK Opinion Poll Tracker, you will know that one of my key charts for making predictions of the 2017 General Election is R1 which shows the changes in vote share by region.

As I have explained, I track the regional breakdowns to produce this chart.  Every now and again, a full on poll takes place to explore a region in more detail and this allows me to check how good chart R1 is.

[Read more…] about UK Opinion Poll Tracker #4 – My Welsh Barometer Poll Forecast Was Correct!

Filed Under: Forecasting, Polling Tagged With: Forecasts, General Election 2017, Opinion Poll Tracker, Opinion Polls, Wales

Forecasting#1 – How do you identify a good forecaster?

April 3, 2017 By Nigel

“I think the people in this country have had enough of experts”

Michael Gove, Sky News, 3rd June 2016

This was one of the most memorable quotes during the EU referendum in 2016 and came in response to a question as to why the forecasts of a whole list of organisations such as the IMF should be ignored.  It prompted a flurry of rebuttals and articles supporting or damning him and the debate has not gone away.

Like so many quotes, it has already become distorted.  I strongly recommend you listen to the full question and answer because here is his quote in its entirety. 

“I think the people in this country have had enough of experts… from organisations with acronyms saying that they know what is best and getting it consistently wrong.”

When I read this full quote I realised I am in complete agreement with Michael Gove. 

[Read more…] about Forecasting#1 – How do you identify a good forecaster?

Filed Under: Featured blog, Forecasting Tagged With: EU Referendum, Experts, forecasting, Forecasting model, Forecasts

6 Nations #6 – How did the rankings do in 2017?

March 23, 2017 By Nigel

Ireland’s win over England brought the 2017 6 Nations to a close.  England were crowned champions but were not able to top it with back to back grand slams.  Over the last few weeks, I have been using the World Rugby Rankings to predict the outcome of the matches and now it is time to see how they performed.

[Read more…] about 6 Nations #6 – How did the rankings do in 2017?

Filed Under: Forecasting, Sport Tagged With: 6 Nations, Forecasts, Rugby, Sport Analytics

By-Elections #2 – Review of Copeland & Stoke Central predictions

February 24, 2017 By Nigel

The results are in and it is now time to review my predictions of the Copeland and Stoke-on-Trent Central by-elections.  How well did my by-election model do and what lessons can be learnt?  Let’s look at the numbers first.

[Read more…] about By-Elections #2 – Review of Copeland & Stoke Central predictions

Filed Under: Elections, Forecasting Tagged With: By-elections, Election forecasting, Forecasting model

By-Elections #1 – How to predict outcomes in the Brexit era

February 19, 2017 By Nigel

Since the UK voted to leave the EU on 23rd June 2016, there have been 3 contested parliamentary by-elections (Witney, Richmond Park, Sleaford & North Hykeham) and one uncontested by-election (Batley & Spen which was the late Jo Cox’s seat).  Many commentators have analysed these results to see how the referendum result has impacted on parliamentary voting intentions.  Whatever voter dynamics are revealed, it is reasonable to assume that they are likely to influence future by-elections.  In late October 2016 just after the Witney result, I realised it could be possible to build a by-election model by combining two sources of data.

  1. My own estimates of the Leave & Remain votes in each of the 650 parliamentary constituencies where I calculated that 400 out of 650 seats voted Leave.
  2. My interpretation of the Lord Ashcroft “exit poll” carried out on 21st to 23rd June 2016 and published immediately after the results were announced. 

At the time, I described my by-election modelling approach in a youtube clip and that is worth listening to.  I have made some changes to my model since then so this post is the most up to date version of my model. I will illustrate the basic principle using the Witney by-election (David Cameron’s former seat) of 20th October 2016 where the top line numbers are:

[Read more…] about By-Elections #1 – How to predict outcomes in the Brexit era

Filed Under: Elections, Forecasting, Polling Tagged With: Brexit, By-elections, Election forecasting, EU Referendum, Forecasting model, Lord Ashcroft poll, Scenario modelling

UK General Election 2015 #1 – My Forecast

May 3, 2015 By Nigel

In two days time, the results of the 2015 General Election will be in. Will there be another coalition? Will Labour get in? What about the SNP in Scotland? You can now see my forecast of the 2015 General Election presented as a YouTube clip and discover many interesting facts about elections in Britain.

The bottom line is that the polls will be wrong and the pundits will be caught by surprise!

Filed Under: Elections, Forecasting Tagged With: elections, forecasting, General Election 2015, Politics

  • « Go to Previous Page
  • Go to page 1
  • Go to page 2
  • Go to page 3
  • Go to page 4

Search this site

More blogs

Pay Gap Data #6 – Where can I find gender pay gap data for 2022?

This post was updated on 27th March 2023 with the latest data The government requires all … [Read More...] about Pay Gap Data #6 – Where can I find gender pay gap data for 2022?

6 Nations History #3 – The men’s story so far in 2023

The 2023 Six Nations (Men's) ended with Ireland beating England to win their 3rd 6 Nations Grand … [Read More...] about 6 Nations History #3 – The men’s story so far in 2023

Pay Gap Case Study #7 – Does the Department for Work & Pensions have a Gender Pay Gap?

The Department for Work & Pensions (DWP) says for every £1 paid to the median man in March 2022, … [Read More...] about Pay Gap Case Study #7 – Does the Department for Work & Pensions have a Gender Pay Gap?

UK Weather Trends #24 – Winter 2023

Winter 2023 was the 10th sunniest on record but I doubt we may have noticed.  There are indications … [Read More...] about UK Weather Trends #24 – Winter 2023

UK Weather Tracker #73 – February 2023

It was the 7th warmest February on record in the UK whilst being dry and sunny. … [Read More...] about UK Weather Tracker #73 – February 2023

Subscribe to Our Newsletter

Join our newsletter mailing list

Receive latest news, articles and offers

Select the categories of interest:

We are GDPR compliant. Read our privacy and Cookie policy for more info.

Check your inbox or spam folder to confirm your subscription.

Copyright © 2023 ·Registered in England, Company No. 5577275, VAT No. 883304029. Registered Office – 65 Bristol Road, Keynsham, Bristol, BS31 1EG