Tag: statistics

Blog Five online training courses For many years Ray Poynter has been offering training courses to a range of private and public organisations.… 21 June 2023 Blog What is the right sample size for a survey? “What is the right sample size?”, this is a question I get asked quite often. In this article,… 8 August 2022 Blog Why do researchers use rating scales and why do they sometimes work? When people buy goods or services they do not typically rate them, so why does market research use… 30 January 2020 Blog Partial Correlation A short description of Partial Correlation. 3 June 2019 Blog Introduction to Factor Analysis In this 2010 recording Ray Poynter provides an introduction to Factor Analysis. 22 May 2019 post image Blog Using sampling error as a measure of reliability, not validity Last week Jeffrey Henning gave a great #NewMR lecture on how to improve the representativeness of online surveys… 7 April 2014 post image Blog The ITU is 100% wrong on mobile phone penetration, IMHO The ITU (the International Telecommunication Union, the UN agency that looks after ICT – information and communication technologies)… 29 June 2013 post image Blog Significant Digits – a key element of clearer numbers I am in the process of writing an introductory statistics book for market researchers. This post and some… 18 December 2012