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

    … that information to smarter A/B tests that truly impact your conversion rate. 3. Make sure you reach statistical significance Statistical significance refers to “the low probability of obtaining at least as extreme results given that the null hypothesis is true.” In ordinary language, it means you’re sure the results of your test were reliable. Statistical…

    George Mathew/ The Daily Egg- 19 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- 13 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- 7 readers -
  • How to Stop Wasting AdWords Spend In Just 3 Clicks

    … and track a 26-round multivariate ad test down to the ad group level in only a few minutes. It then records, tracks and reports each round of ad tests each time one reaches statistical significance. Ready to take Hero Pro for a test drive? (Free for 10 days – No Credit Card Required, No Strings Attached)…

    Jeremy Page/ PPC Heroin Paid Search How To's- 9 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- 14 readers -
  • Part 9: SEM Ad Copy Testing Insights for Your CMO

    … “It is the mark of an educated mind to be able to entertain a thought without accepting it.” ― Aristotle Does DKI improve performance? Google is rolling out the ad customizer tool, which Search Engine Land calls “Dynamic Keyword Insertion On Steroids.” So it seems appropriate to reevaluate the merits of Dynamic Keyword Insertion (DKI). There…

    Karen Amundson/ BoostBlogin Paid Search SEO- 7 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- 15 readers -
  • Tips For Testing New Things In Marketing

    The Holiday Shopping season is upon us! In my opinion, it’s one of the best times ever to run new tests in Marketing. Running and measuring tests requires a massive amount of data to arrive at statistical significance. There will never be more data available than during your company’s busy season (which happens to be Q4 for many businesses, especially those in retail).

    Ian Lopuch/ PPC Ian- 6 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

    … to something. Q: How do you determine the right amount of traffic to create a valid assessment of a heatmap? Or to make it statistically significant? A: The thing to understand with click heatmaps is that you are not aiming for statistical significance. A click heatmap is an indicator of how people are acting that leads to hypotheses. It’s…

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

    … changes. So going back to test is worth doing. But give yourself some time and run through a bunch of tests, and then go back and validate. And if nothing else, this can be used as a tech check to make sure your statistical significance is working out. Q: Do you have any kind of tips for dealing with HIPPO’s (Highest Paid Person’s Opinion) who…

    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- 11 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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