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
  • 5 CRO Mistakes That Need to Be Fixed!

    … that has an online presence. It is common knowledge that Conversion Rate Optimization is a system that most – if not all – webmasters of business websites use to increase the percentage of visitors converted into a customer. However, this process is still susceptible to errors and mistakes that can damage your SEO campaign. Today, I’ll be giving…

    SEO Hacker Blog- 13 readers -
  • 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- 28 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- 17 readers -
  • The Great Disavow Debate

    A Whiteboard Friday video from Moz has stirred up significant debate in the SEO community. In this video, Josh Bachynski tackles the question: Can uploading a disavow file to Google lift a Penguin penalty without removing links? Bachynski states in the video that there are some SEO consultants that claim uploading a disavow file alone can get Penguin penalties lifted.

    Marcela De Vivo/ Search Engine Watch- 10 readers -
  • How to Stop Wasting AdWords Spend In Just 3 Clicks

    … Using AdWords Scripts in your account is an amazing way to help manage the PPC craziness, but sometimes you need help beyond what a script can provide. Here at Hanapin we utilize AdWords Scripts in almost every account we have, why? Because they’re awesome! They free up loads of time, are easy for both our novice and expert account managers…

    Jeremy Page/ PPC Heroin Paid Search How To's- 14 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- 26 readers -
  • Part 9: SEM Ad Copy Testing Insights for Your CMO

    … have been numerous independent studies showing that DKI lifts performance. Though many of these studies have methodology flaws (lack of statistical significance, comparisons over different date ranges, etc.), there are enough studies showing lift from DKI. Case closed, right? Not so fast. If we may make such a stuffy and high brow Aristotle…

    Karen Amundson/ BoostBlogin Paid Search SEO- 12 readers -
  • 6 Email A/B Tests You Can Run Today (And Get Results)

    … subject line that you should test? Here are 6 subject line test possibilities. 1. Length: Which works better — a short subject line or a long subject line? MailChimp reports that 28–39 characters is the sweet spot. I’ve found that even shorter can sometimes be better. 2. Curiosity: Which works better — a subject line that reveals the contents…

    Neil Patel/ The Daily Eggin EMail- 29 readers -
  • Tips For Testing New Things In Marketing

    … pages, build the banners, get legal approval all well ahead of time. When things get busy, I like to focus on execution, and it’s always so great to have all the background work done well ahead of time. Image of beta test © iStockPhoto – Aquir …

    Ian Lopuch/ PPC Ianin Affiliate- 9 readers -
  • Why You Can’t Just Trust Your Split Test Stats

    …! Blindly following the stats is a mistake and can cost you and your clients the two things businesses never have enough of – time and money. You can’t just rely on stats – you have to use your brain! The programs that analyze your stats and determine that your experiments have reached statistical significance are written to tell you if your tests…

    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- 5 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- 16 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- 17 readers -
Get the top posts daily into your mailbox!
More from around the web