Statistical Significance

Statistical significance is the probability that an effect is not due to just chance alone. It is an integral part of statistical hypothesis testing where it is used as an important value judgment. In statistics, a result is considered significant not because it is important or meaningful, but because it has been predicted as unlikely to have occurred by chance alone.The present-day concept of statistical significance originated from Ronald Fisher when he developed statistical hypothesis testing in the early 20th century.
Posts about Statistical Significance
  • 6 Must-Know Tips for Successful A/B Testing

    … Conversion rate optimization (CRO) lets you achieve something quite wonderful: it helps you get more out of your existing traffic. A/B testing is the secret sauce that makes that happen. But what happens when you finally decide to carry out A/B tests? You find tons of articles on the subject and are bombarded with advice—advice which is often…

    George Mathew/ The Daily Egg- 24 readers -
  • Seven Conversion Rate Tactics That Increased Sales by $21 Million

    … based on the PIE framework from Wider Funnel, we analyzed high-traffic and high-value pages and identified which review page was the best page for conducting an A/B test. The exit rate was 31% on that page, so our goal was to decrease the amount of shoppers who abandoned the site—which meant cutting down the number of call-to-action buttons from…

    MarketingProfs- 16 readers -
  • The Great Disavow Debate

    … A decrease in referring domains An increase in referring domains after the decrease Of course a few sites do not provide statistical significance, but when you look at the commonalities you can start seeing trends emerge. The trend and commonality that we’ve seen in all of our Penguin recoveries is that they all lose a significant amount of backlinks…

    Marcela De Vivo/ Search Engine Watchin SEO Google- 8 readers -
  • How to Stop Wasting AdWords Spend In Just 3 Clicks

    …, or your company simply has loads of ads and you’re using scripts to address this problem you’re likely missing a ton of broken URL’s because of one or more of the following script limitations. Scripts break for unknown reasons – AdWords provides error messages when a script fails, but more often than not your left clueless as to why a script fails…

    Jeremy Page/ PPC Heroin Paid Search How To's- 9 readers -
  • 2014′s Top 10 Analytics & Marketing Columns On Marketing Land

    … Google’s Analytics program, and specifically the migration to Universal Analytics, dominated the popular columns in our Analytics & Marketing column in 2014. But our readers also showed a lot of interest in the critically important topics of statistical significance, tag management and social analytics. Following, the top 10 columns…

    Pamela Parker/ Marketing Land- 18 readers -
  • Customer Choice and Conversion: Less Is More

    … calls to action, including calls to sign up for the newsletter and like them on Facebook. They hypothesized that these extra CTAs were only distracting customers. To test this, they created a simpler variation with only one bold CTA that asked customers to continue to checkout. The variation performed better by 11.40% with a 99% statistical…

    The Daily Egg- 18 readers -
  • Part 9: SEM Ad Copy Testing Insights for Your CMO

    … reference, please “entertain the thought” that there may be more to the DKI story than meets the eye. Boost Media Study on DKI Boost Media’s expert team of data scientists analyzed the DKI performance of 15 premium retail AdWords accounts comparing ads containing DKI verses ads not containing DKI within the same ad groups over the same date range when…

    Karen Amundson/ BoostBlogin Paid Search SEO- 9 readers -
  • 6 Email A/B Tests You Can Run Today (And Get Results)

    … to start thinking of email split testing as a silver bullet to all your email marketing problems. Well, it’s not a silver bullet. But it’s the next best thing. There’s one problem regarding email marketing that I want to draw your attention to: statistical significance. The problem isn’t with testing itself, but with the way that some email…

    Neil Patel/ The Daily Eggin EMail- 21 readers -
  • Tips For Testing New Things In Marketing

    …, especially those in retail). Today, I wanted to share some high level tips and frameworks as you explore your own testing strategy. Never stop dreaming up new ideas. As performance marketers, I view each of us as "Mini CEOs". There are few disciplines as multi-disciplinary as digital marketing, and you are truly in the driver’s seat to create change…

    Ian Lopuch/ PPC Ianin Affiliate- 7 readers -
  • Why You Can’t Just Trust Your Split Test Stats

    … The split test experiment you ran on your ads is complete. You ran two different ads on AdWords, and made sure to test an important variable like the value proposition. You then marked the experiment as complete when whichever program you used told you it was. You took the program at its word - because computers are good at math and began…

    Adam Lundquist/ PPC Hero- 5 readers -
  • Heatmaps Role in Conversion Optimization Q&A

    … an exploratory method. Only in the reductive-conclusive side, when you are talking about A/B tests or multivariate tests, that’s where statistical significance matters. For click heatmaps it actually doesn’t, but the more clicks you get the more of an aggregate view you will get, and potentially, the more important hypotheses you’ll get. As a general rule…

    Jacqueline Mcdonald/ WiderFunnel- 4 readers -
  • Mobile Marketing Optimization Q&A

    … Chris Goward was the keynote speaker at the Conversions@Google Summit on October 20th 2014. His presentation on Mobile Marketing Optimization spurred a great Question and Answer period. Here is how Chris defined mobile optimization during his presentation: A lot of people think mobile is the difference between a desktop and a phone. Some people…

    Jacqueline Mcdonald/ WiderFunnelin Mobile- 12 readers -
  • How to Write the Perfect Email That Gets Opened and Clicked

    … test we conducted, there would be an average of 3,300 customers in each group. To ensure our results had statistical significance, we used this A/B Calculator. 4. The Email Platform Before you can start testing, you need a solid email marketing platform that lets you perform A/B split test campaigns. We decided to use MailChimp as it has detailed…

    The Daily Eggin EMail How To's- 14 readers -
  • Supercharge Your PPC Workflow

    … for optimization in the upcoming months. Ad test analysis. Review ad copy tests, pause losers and start new tests. Take note of tests that don’t have enough data for statistical significance, so you can look at them next month. Remarketing audience performance review. Are your remarketing audiences performing the way you expected? Do you need to create new…

    Melissa Mackey/ Search Engine Watchin Paid Search- 10 readers -
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