Welcome to the ITNS blog, our internet home designed to help students, teachers, and others get the cropped-51h9QryV00L._AC_US160_.jpgmost out of Introduction to the New Statistics. For more information about the book, see the publisher’s page for ITNS here. At that page, click ‘Look inside’ to see the Contents, Preface, and Chapter 1 in full.

What will you find here?

  • Blog posts from Geoff and Bob with musings and new articles related to the New Statistics and Open Science
  • Information about the first book, Understanding the New Statistics
  • Previous versions of ESCI: Use the ‘ESCI’ tab at the top of this page

Looking for instructor resources? These are on the publisher’s companion website for the book here.

Are you a student looking to download ESCI, data sets, flashcards, or other resources?  These are on the publisher’s companion website for the book here.

  • Randomistas: Dare we hope for evidence-based decisions in public life? - I've just listened to a great 20-min podcast, published by The Conversation. The podcast is here. It's an interview by my colleague Fiona Fidler with Anthony Leigh, about his recently released book: Randomistas: How Radical Researchers Changed Our World. Published by Black Inc. and La Trobe University Press. Andrew Leigh
  • Sample-size planning – a short video - Here's a short talk I gave at the 2017 Society for Neuroscience meeting on sample size planning.  The talk discusses: Why you should plan your sample sizes in advance What not to do (how some common approaches can lead you astray) What an effect size is and why it's important
  • Open Science: This Time in Orthodontics - Last month it was the Antarctic Scientists, this month the Orthodontists, and once again I had a most enjoyable time. Lindsay my wife and I are just back from 5 days in Sydney. I was speaking at the 26th Australian Orthodontic Congress, which is the biennial meeting of the Australian
  • Why effect sizes? A tutorial (especially for Neuroscientists) - The New Statistics emphasizes effect sizes, confidence intervals, meta-analysis, and Open Science.  There's a lot of momentum to adopt this change of focus.  For example, the APA recently released new guidelines for reporting quantitative research and throughout it emphasizes reporting of "effect sizes and confidence intervals" (Appelbaum et al., 2018).  It
  • What Medicine Can Teach Us About Low Probabilities: A Personal Experience - I'm recently home after 10 days in hospital. It was meant to be a simple procedure, home the next morning, but two low probability complications arose. I was largely out to it for a few days, but then I was fascinated to watch as my doctors monitored numerous measures, ordered
  • The complexity of measuring a ‘simple’ behavior (novelty preference tests seem terrible) - The replication crisis isn't just about sample size and statistical inference.  Another key issue is measurement: the process of turning observations into quantitative statements about our sample.  It's tricky.  In many cases we've run before we learned to walk, adopting methods of measurement without adequately determining sources of error and bias,
  • Pre-Print – The New Statistics for Better Science - We have a new preprint on how the New Statistics can save the world (sort of):  https://psyarxiv.com/3mztg  It's for a special issue of the American Statistician on the them of  "Beyond p values". We welcome your feedback on via email, twitter (@TheNewStats), or via comment on this blog.
  • Open Science Goes to the Antarctic–Well, Nearly - Have you ever met a Professor of Seaweed? No, nor had I, but now I have: Catriona Hurd. More about her in a moment. I'm just back from two highly enjoyable days visiting IMAS, the Institute of Marine and Antarctic Studies, part of the University of Tasmania. IMAS occupies an
  • Not replicable, but citable - What happens to the reputation of a paper when the results reported cannot be replicated? Here's a graph of citations/year from two studies--an original and a replication study that found little to no effect.  It's just one example, but it doesn't seem like the replication study has had much impact
  • It’s not all bad news - Here's a cool pre-print examining the quality of evidence in studies of the genetics of short-term memory in fruit flies (Tumkaya, Ott, & Claridge-Chang, 2018).  The paper conducts a meta-analysis of different genes that have been linked to altered olfactory memory.  There's lots of good news.  Most genes were identified
  • Banning p values? The journal ‘Political Analysis’ does it - Back in the 1980s, epidemiologist Kenneth Rothman was a leader of those trying to persuade researchers across medicine and the biosciences to use CIs routinely. The campaign was successful to the extent that the International Council of Medical Editors stated that CIs, or equivalent, should always be reported and that
  • Pre-registration challenge met! - I (Bob) have met the pre-registration challenge!  I pre-registered a set of replication studies (Calin-Jageman, 2018), and now that they are published, I've received confirmation from the Center for Open Science that I have met the challenge--a check for $1,000 will arrive in my mail around July 1st.   What a
  • A bracing call for better science when linking genes to brain function - There's a fantastic editorial out in the European Journal of Neuroscience (Mitchell, 2018) arguing that standards need to be much higher in the field of neurogenomics--that's the study of how genes relate to differences in brain structure and function. The editorial is spot on--it concisely reviews the issues of low
  • Open Science Leaders: Dan and Steve Tell Their Stories - BTW, have you noticed that Bob has set up NewStatistics on Twitter--scroll down and see the right hand side bar. Do follow us and help spread the word. Thanks! Dan Simons may be best known as the co-author of the best-seller The Invisible Gorilla. He's also the foundation editor of
  • Gaining expertise doesn’t have to close your mind–another adventure in replication - You may have seen it on the news: being an expert makes you close-minded.  This was circa 2015, and the news reports were about this paper (Ottati, Price, Wilson, & Sumaktoyo, 2015) by Victor Ottati's group, published in JESP.  The paper showed an 'earned dogmatism effect'--finding that "situations that engender self-perceptions
  • Say It in Song: Go Forth and Replicate! - Jon Grahe, of Pacific Lutheran University, is an enthusiastic advocate for Open Science and, especially, for student participation in doing Open Science as a key part of education. The Collaborative Replication and Education Project (CREP, pronounced "krape") is a great project of his, which we discuss on pp. 263 and
  • A Fine ITNS Review on Amazon - Recently a new review of ITNS was posted on Amazon. It's here, or go to the Amazon site for ITNS and scroll down. "This is a really fantastic statistics textbook ... ... Highly recommended!" I don't know 'Rob', who wrote the review, but he clearly is an insightful person with
  • Some Questions–Would You Care to Comment? - Blogs sometimes either elicit lots of comments, or they don't. While writing, I'm always wondering how readers might react, what they (you) might be thinking. In my most recent post I asked about experiences or thoughts readers might have about teaching meta-analysis, especially in the intro course and especially using
  • Teaching the Forest Plot–What Do You Think? - I've been a bit obsessed with the forest plot for, I'd guess, close to 20 years. Partly because I love pictures, partly because the forest plot can tell us so much. I regard it as the beautiful face of meta-analysis. These days it's probably the beautiful face of Open Science.
  • See you in San Francisco? - I'm delighted to report that our symposium proposed for the APS Convention next May has been accepted. (BTW if you visit that site for the Convention, note the happy people in the top centre pic--our panel from the 2017 Convention.) The Convention will be in San Francisco, 24-27 May 2018.