Personal Attack Fallacy Examples In Media, St Luke's Podiatry Residency, Articles H

Hattie found that the average effect size of all the interventions he studied was 0.40. | edmagine, Comments by Ontario Education Minister Makes Math Matters Worse. It is one of the many factors that Hattie tells us will improve student performance (0.75 effect size, with 0.4 being a full year of [], [] the 250 areas Dr. Hattie has researched, one of the strongest influences on how much a student will learn in a year is [], [] efficacy currently has highest effect on student learning according to John [], [] & Metacognition have consistently been shown to raise achievement through both Hatties Visible Learning and The EEF Toolkit, where they both add 8-9 months of additional pupils progress. This error has been corrected in newer editions and translations of the book. Services, (1 of 3) Measuring the Impact of Technology on Learning | Evolving Edtech, Quelles technologies pour apprendre apprendre ? 138 Influences Related To Achievement Hattie effect size list. Cheers, Sebastian. Hattie effect size list 256 Influences Related To Achievement. With 0.4 being the mean, it looks as if success criteria are rather important. There is a list attached here List of Effective Practicewhich I found fascinating looking at all the things people have said in the past they thought would [], [] I think the issues discussed pre-date our current era; however, they have been exacerbated by technological change. 25 March 2021. While his work has been criticized in some corners, we can still draw a lot from it and it is a [], [] examine what makes a difference in education, laptops, and other technology, come way down the ranks. Hello, I am about to buy the book but I wondered if someone could just quickly fill me in here on what statistic is being used to represent the effect size, e.g. From the very beginning the story of Visible Learning is mainly based on the effect size (Cohens d) which are correct. Why is this? I am trying to learn precisely what is meant by the new top two effects. Teacher/student relationship hashigh impact on student learning. Make sure you read the preamble regarding what Hattie would [], [] temtica de los estudios analizados por Hattie es muy amplia (ver lista completa), como, por ejemplo, los efectos del calendario escolar, el tamao de las escuelas, el estatus [], [] Top 20 Hattie Effect Size List, Quelle [], [] Current research suggests that getting feedback right, establishing productive teacher-student relationships, reciprocal teaching and fostering meta-cognitive strategies to help students become better at learning are among the strategiesfor which there is a robust evidence base for improved outcomes. The art and science of teaching. That doesnt seem to be on the list, but Teacher Efficacy, Teacher Credibility, and teacher Clarity do appear. Cheers, Sebastian. Here are some thoughts on Hatties use of statistics mathematically http://literacyinleafstrewn.blogspot.no/2012/12/can-we-trust-educational-research_20.html, and here https://ollieorange2.wordpress.com/2014/08/25/people-who-think-probabilities-can-be-negative-shouldnt-write-books-on-statistics/. In came written feedback. The Common Language Effect Size (CLE) is a probability measure and by definition must be between 0% and 100%. With this in mind and my recent readings of John Hattie (2014), I am keen to explore some of his projects findings during my reflective practice. M. J. He published his original findings in a list of 252 influences on learning ranked by effect strength. Diffrenciation. I am a change agent. large effect size begins. Your Teacher Credibility: 12 Ways to Establish It on the First Day of School - BLACKBOARD talk. Hi Mr. Hattie, Anne Davies examples of co-constructing criteria reminded me of the agency and importance of [], [] Waack, S. (n.d.). As Dylan Wiliam has often said, technology is the revolution that is still coming! In his groundbreaking study "Visible Learning" he ranked 138 influences that are related to learning outcomes from very positive effects to very negative effects. Hattiehas this as one of his biggest hitters. The full chart is here. For identified outliers, sensitivity analysis was conducted to calculate the parameters of the model again after these outliers were deleted. Collective Teacher Efficacy is ranked as the number one factor influencing student achievement with an effect size of 1.57 (Hattie, 2016). This is great because non-linguistic representation is so important; text can't cut it alone anymore. 138 Influences Related To Achievement Hattie effect size list. (The updated list also includes the classroom.) Teacher Clarity, Part 1, May 20, 2020 - Georgia Department of Education It suggests that Collective teacher efficacy is the number one influence (with an effect [], [] took available meta-analyses and meta-analyzed them! Please advise as to where to find them (of course, I know where summarizing is on the scale..but others). That is not the main issue. Hattie adopts 0.4 as the cut off point, basically ignoring effects sizes . Hattie found that .40 was the "hinge point" of usefulness. Rather than focusing on one aspect of teaching, Hattie synthesizes [], [] Even if you worked purely on the fact that all students were ensured a consistent diet of modelling, questioning, checking, practice and assessment, planned in a shorter space of time and delivered by a less stressed, more focused and confident teacher, collaborative planning cant be argued against. The evidence [], [] What does the research of John Hattie and the EEF say whats effective/ whats not and why? Once again, they largely tell us what to consider, but there is so much between consideration and implementation. Here Hattie & Donoghue attempt to show at what stage in students' learning should various strategies be implemented. [], [] resulting in a ground-breaking book Hattie (2009) Visible Learning where he identified and ranked 138 influences related to learning outcomes ranging from positive to negative effects on [], [] Learner facilitated the team in matching the ideas against Hatties research on the Top Influences and Effect Sizes Related to Student Achievement. Teaching Literacy in the VL Classroom, 2017)? The effect size for success criteria in John Hattie's 250+ influences on learning is now 0.88, after the latest meta-analysis was added to the data. As all International Schools know, mobility is often unavoidable, and schools such as ours plan [], [] (5) Voir par exemple le classement tabli par John Hattie qui relgue les pdagogies axes sur la dcouverte ou le jeu bien loin derrire http://visible-learning.org/hattie-ranking-influences-effect-sizes-learning-achievement/ [], [] since I first learned about John Hatties Visible Learning, I frequently check this website when I want to know somethings effect size. (Hattie conducted a meta-analysis of [], [] freely available to teachers that can enhance feedback (TheEducation Endowment Foundation and Hattie have research to suggest this has a significantly positive impact on learning. Retrieved from http://visible-learning.org/hattie-ranking-influences-effect-sizes-learning-achievement/ Mishra, P. & Koehler. Strategy 1: Setting goals Lessons have clear learning intentions with goals that clarify what success looks like. Bovendien, je zitniet jehele leven op school. An effect size of 0.40 on his scale is what educators should expect and aim for when trying to [], [] que socit faisons-nous une fixation collective sur la russite scolaire des garons ? Also, Concept Mapping (Joseph Novaks work) is an example of an instructional strategy he wisely does not provide an effect size for graphic organizers because graphic organizers is not a specific instructional method (that would included, flow charts, ranking ladders, Venn diagrams, Fishbone diagrams, Mind Maps and Concept Maps). (2015). The following chart displays all effect sizes larger than .70 from his 2016 book: Students as self-assessors = huge impact on learning and achievement! . But all effects are not equal. I found thislist of 252 influences. Id love to analyse his study and thoroughly read his methods for research. Dec 29, 2021 The Upside of Adversity Oct 24, 2021 Gratitude is All About Muscle Memory Oct 19, 2021 . Created Date: 5/20/2021 8:42:55 AM . He also tells the story underlying the data. Hello, He did a meta analysis of what works best for learning in schools. r or r^2 or z? In other words, if you get an effect size of .6 or .7 you are achieving a far greater gain with your kids than would be expected. This is very hard to do well in the broader school system. | Anna Fors Miravalles, Teachers: 3 tips to start increasing your impact on learning | Bradley Kersing, Prioritize Those Plates! It seems suspicious that I can only view his study by purchasing his book. | KeeNote, Approaching Teaching: Week of January 22, 2017 | Approaching Teaching @ AISK, Phase 1 : affiner le questionnement de recherche | E-Portfolio- Catherine Semer, Why What Works Doesnt: False Positives in Education Research HEOP.org, Mes propositions pour revaloriser lenseignement de lhistoire | Contre-Rforme, https://visible-learning.org/hattie-ranking-influences-effect-sizes-learning-achievement/, Monster Eyes - Using The Power of Modelling - EFL Magazine, Concorsi a premi e divulgazione di risorse informatiche per la didattica BRICKS, John Hattie on Effect Size Adding to the tool box: Strategies for teaching and learning with ESL students, The Willful Ignorance of Education Research - Teacher Habits, Podcast | High Quality Professional Development at Eagle Rock, Ideas for subject based reflection MrHodson, Student/Teacher Relationships: Build Them and They Will Learn Hillsborough National Board Certified Teachers, Qu funciona en Educacin? Among the top ten, at the far end of the statistical curve, feedback meaning feedback to the teacher appears. Hattie constantly updates his list with more meta studies. Hattie has headed a team of researchers for 20 years who have trawled the world for evidence about the effectiveness of teaching interventions. Great people have generally relied on and responded to mentors in their development. | LesleyTait, Equitable Education for Students in Poverty Starts with the Teacher | Getting Smart, A teacher in Texas banned homework so kids could learn from life instead Quartz, Improvement as Habit: Shrinking the Gap Between Theory, Research, and Practice in Education Ars Doctrina, Coaches are teachers of sport, but there's a lot to learn from the classroom | Em News, Coaches are teachers of sport, but theres a lot to learn from the classroom | Science News, Dla naszego dobra | Partnerstwo Edukacja na Nowo, Coaches are Teachers of Sport: Learning from the Classroom | iSport, R. B. GOTHI JAIN COLLEGE FOR WOMEN Every New Teacher Should Be Able To Answer The 7 Questions, Leading Learning & Teaching by Stephen Dinham a review by me ;) | Bianca Hewes, Growth Mindset and GRIT (the quest for better learning behaviours) | NDHS Blog Spot, Course 5 Final Project Going Formative | A Hole in the Wall, Establecer comunidades para crecer como aprendices permanentes | amplifiEDucation, Lets focus on what matters Dr. Karen Speech and Language, Teachers: 3 tips to start increasing your impact on learning Bradley Kersing, Au sujet de la diffrenciation pdagogique | Contre-Rforme, Who is shaping the future of education? The research is very clear in this area of education. Hattie hefur skilgreint 138 atrii sem hafa hrif nmsrangur nemenda, au m sj hr [], [] forget that there are a large number of stock markets around the globe and a wide range of other influences on student achievement that we may not even be aware [], [] Influences and effect sizes related to student achievement (diagram). | EduBits by Kristin Phillips, AfL in STEM Teaching MOOC Week 3 Hannah Tyreman, If not Gonski funding, then what? Summer vacation effect 0.02 School compositional effects College halls of residence 0.05 Desegregation 0.28 Diverse student body 0.10 Middle school internventions 0.18 Out-of-school curricula experiences 0.07 School choice programs 0.12 School size (600-900 students at secondary) 0.43 Other school factors Counseling effects 0.35 Modifying . This Hattie website, for example, shows an effect size of 0.60. John Hatties workVisible Learning details 138 factors that influence student learning, and among them, formative assessment, or formative evaluation as he terms it, has [], [] an analysis of over 800 meta-analyses of classroom strategies, Dr. John Hattie identifies over 130 factors that yield learning results. Kirschner, Sweller and Clarks 2006 paper Why Minimal Guidance During Instruction Does Not [], [] instruction, providing quality feedback to teachers, focusing our efforts on strategies that work (Hatties work), sustaining this improvement work over time (years), ensuring the parents are informed and [], [] is formative assessment important? Teaching Strategies Factors relating to learning intentions, success criteria, feedback, and teaching strategies. Simon, I find a similar issue with the topics listed. 2. The Common Language Effect Size (CLE) is a probability measure and by definition must be between 0% and 100%. The effect of gender on the learning outcomes. lower than 0.4. Hattie Ranking: Influences And Effect Sizes Related To Student Achievement. Professor John Hattie (Fisher, Frey & Hattie, 2016) ranks collective efficacy as the number one factor influencing student achievement, with an effect size of 1.57. TheApplicability of Visible Learning to Higher Education (2015), www.visiblelearningplus.com/content/250-influences-student-achievement, visible-learning.org/2016/04/hattie-ranking-backup-of-138-effects/, visible-learning.org/hattie-ranking-backup-195-effects/, visible-learning.org/nvd3/visualize/hattie-ranking-interactive-2009-2011-2015.html, https://visible-learning.org/backup-hattie-ranking-256-effects-2017/, Hattie (2011) Visible Learning for Teachers, https://ollieorange2.wordpress.com/2014/08/25/people-who-think-probabilities-can-be-negative-shouldnt-write-books-on-statistics/comment-page-1/#comment-545, http://leadershipacademy.wiki.inghamisd.org/file/view/Corrections%20in%20VL2.pdf/548965844/Corrections%20in%20VL2.pdf, https://sites.google.com/a/lsnepal.com/hattie-funnel-plot/, http://ivysherman.weebly.com/uploads/1/7/4/2/17421639/post_-_edd_1007_final_paper_pr.pdf, http://visible-learning.org/glossary/#2_Piagetian_programs, http://literacyinleafstrewn.blogspot.no/2012/12/can-we-trust-educational-research_20.html, https://ollieorange2.wordpress.com/2014/08/25/people-who-think-probabilities-can-be-negative-shouldnt-write-books-on-statistics/, https://www.youtube.com/watch?v=FUfEWZGLFZE, http://ecommons.luc.edu/cgi/viewcontent.cgi?article=1132&context=luc_diss, https://www.amazon.ca/Visible-Learning-Teachers-John-Hattie/dp/0415690153, https://visible-learning.org/2018/03/collective-teacher-efficacy-hattie/, Whats the Difference? [], [] detter er kun udvalgte punkter og John Hatties oprindelige liste indeholder mange flere omrder. Well, I (stupidly) rented a Kindle version of the VL for Teachers that your link led me to on Amazon. Selon le [], [] in his book Visible Learning for Teachers, shows that there is a limited correlation between class size and student achievement. | MANEKIND, 5 Mistakes Teachers Make the First Week of School with Linda Kardamis @coolcatteacher, My name is Matt, and I ditched my homework. School size (600-900 students at : secondary) 0.43: Other school factors: Counseling effects: 0.35: Generalized school effects: 0.48: Modifying school calendars/ timetables: . The aim of the study was to analyze as much research as possible to rank the practices that have the biggest effect on student achievement. _ _ _ _ _ Kraft's Effect Size Interpretation Guideline #2. Second, if the presenter of your staff development session is not aware of the issues raised by this post - you may want to very . What's so Important About Learning Intentions and Success Criteria? For instance, what does Piagetian programs mean; what do creativity programs entail; how are repeated reading programs executed? Internet actu Le Monde.fr, Qu funciona enEducacin? Hattie highlights that the effect size of technology has been low for the last 50 years, and remains so. How can there be this level of difference? More difficult for some of us, we also debated whether setting students by ability engenders a fixed mindset, both in the students who found themselves in lower sets, and in the [], [] Drs. Is there an explanation, on your site, of the new top two effects? Moreover, taking into account the standard deviation helps to better interpret mean differences. We know from John Hattie andhis work in Visible Learningthat a teacher is one of the most important factors when it comes to student outcomes. According to John Hattie, of Visible Learning, teacher credibility has an effect size of .90, and peer tutoring an effect [], [] afford students the opportunity to own their learning and serve as a resource for their peers. When teachers set learning intentions use appropriate pace and have a clear and strong narrative about their teaching then student's are more secure about their learning and their level engagement and understanding is increased.<br />Theory Of Action For 2011<br />. eight 5 AfL Techniques. effect size d isnt a perfect measure (that doesnt exist) but its a good and practical approach to compare different sample sizes. | Technologie in het onderwijs, A Convergence of Interests? [], [] [7] http://visible-learning.org/hattie-ranking-influences-effect-sizes-learning-achievement/ [], [] on Live Time Assessment. When master teachers use it effectively, it is a highly valuable [], [] particularly those from disadvantaged backgrounds (Some examples:Project Follow Through, hattie effects, and reading research). Da flere af lige disse netop er den lring, som indarbejdes i den [], [] can inform practice and practice can inform research. - Darcy Moore's Blog, Hatties Visible Learning: heilige graal of pseudowetenschap? Teaching is a craft. Hattie found that the average effect size of all the interventions he studied was 0.40. Hats off to Hattie for diving deep into what makes us all tick. (Remember 0.40 is expected student growth in [], Your email address will not be published. | Educhatter, Impact: Teaching Literacy in the Visible Learning Classroom, How Do You Know When A Teaching Strategy Is Most Effective? In this blog entry, we'll explore strategic ways we can blend technology tools like Buncee into student learning strategies. this is very interesting. She shared her experiences in preparing students for this shift in assessing and grading, as well ashow she had to modify her teaching. My question is, does anyone know why the 2015 list of 195 influences is not published in later books (i.e. Things like charter schools, student gender and teacher's level of education are around 0.1 (almost no impact,) while feedback, acceleration and formative assessment are . En effet, cette nomenclature mapparaissait sinscrire dans la recherche de concepts-cls [], [] Hattie Ranking: Influences and Effect Sizes Related To Student Achievement [], [] one the most powerful things teachers can provide for students in classrooms is formative feedback. I [], [] Hatties Relative Influences Teacher Estimates of Achievement are at the top! Hattie ranks cooperative learningstudying in groups, participating in discussions, [], [] stand, or fall on the merits of their research base. formative evaluation have large effect sizes, (ES .68 and ES .68.90, respectively). The effect size, in Hattie's book, is noted at .76 for transfer and .50 for new passages. Many of us are familiar with the meta-analysis work of John Hattie looking at structures that impact student learning. Teacher estimates of achievement and Collective Teacher Efficacy? Cooperative learning, providing enrichment and afterschool programs have an effect size around the average of 0.4 (average impact). Utilizing John Hatties ground-breakingVisible Learning research, educators embracing researchED will, over time, be far more inclined to assess teaching methods in [], [] principal always tells us the Hattie effect size of strategies she offers, so when I saw that John Hattie was one of the authors of this book, I [], [] long time to show up in real classrooms. InformED Reform, The 7 Questions every teacher should be able to answer | Sharryn M Bloor, Reflecting on Reflecting mister stepan's Class, Visible Learning in the Digital World - Corwin Connect, Follow through: It isn't just about your golf swing (Part 1) - eObservations, The Impact of Collective Efficacy on Student Achievement (Part 4) - eObservations, A years growth; how do we develop agreement? From the very beginning the story of Visible Learning is mainly based on the effect size (Cohens d) which are correct. We all know the extrinsic motivators that drive students (i.e. Classroom Behavioural has an effect size of only 0.62. Classroom Instruction that Works with English Language [], [] metodologie e particolari setting educativi. The teaching and learning variables are numerous and often amazing! LOVE. Retrieved from VISIBLE LEARNING website: . If you havent seen this data already, you [], [] of this articulation is worthless unless it has a positive impact on student learning. The range is from 0 to 1.62, with the larger effect being more valuable. [], [] progress, in daily sessions over two and a half months. Few would argue the importance of feedback to increase student achievement even without having read the research from John Hattie. [], [] continues to rank the 195 Influences And Effect Sizes Related To Student Achievementwithout acknowledging the concerns raised by statisticians. Is it possible to get access to your powerpoint? In the past, [], [] Hattie Ranking: Influences & Effect Sizes on Student Achievement [], [] feedback is well known to beone of the most impactful influences on student learning. These influences were rated using an effect size, with a .40 effect size having the potential to stimulate a years [], [] La relacin de factores estudiados por Hattie y publicado en diversos aos, ha ido creciendo hasta los 250 que acaban de publicarse en 2017 (Una imagen interactiva de efectos anteriores puedes verla desde aqu). Dear Erica, [], [] Researcher John Hattie has pored over nearly 1,200 educational studies from around the world to identify the factors that most strongly contribute to student success. 6. I am not a statistician but I have some questions about Hatties explanation as to how publication bias does not affect his results. Im just wondering way diagnotic and remediation programs to overcome studentsweaknesses on science concepts and other diciplines has not been included this review. And I think this is one of the meta-analysis Hattie relates to: Eels (2011): Meta-Analysis of the Relationship Between Collective Teacher Efficacy and Student Achivement http://ecommons.luc.edu/cgi/viewcontent.cgi?article=1132&context=luc_diss Using the TPACK framework: You [], [] http://visible-learning.org/hattie-ranking-influences-effect-sizes-learning-achievement http://www.ppta.org.nz/index.php/resources/pptanews/305-ppta-newsapr09-hattie-review [], [] cited John Hatties work analyzing the effect of 138 influences on studentachievement. To place this average of 0.79 into perspective, it fell in the top 5 to 10 highest influences on achievement in Hattie's (1999) synthesis, along with direct instruction (0.93), rec-iprocal teaching (0.86), students' prior cognitive ability (0.71), and also can be con- As future educators it is important for us to first understand what this means for our students [], [] de lues, je nallais pas ajouter Hattie la liste Cela dit, jtais fort intrigue par lchelle des 138 influences relies aux russites des lves. What do Hattie and Pedro say to that? Dear Chuck, John Hattie - 13.8k views 52 slides Murrays Bay Intermediate PLD - Visible Learning Stephen Kendall-Jones 3k views 35 slides 5th Annual Conf | John Hattie Keynote For those of you who may not be familiar with effect size and how it is used in education, here's the low down: an effect size of 0.40 is known as the hinge point, which means . Online and digital tools, for example, rank very low on his list of 195 Influences And Effect Sized Related to Student Achievement. 2021), the magnitude of this overall effect size (g = 0.44 . Educational researcher and thinker John Hattie ranks both teacher and student (self) efficacy among the most effective and influential factors [], [] Hattie describes collective teacher efficacy as having the greatest influence on student achievement. Acquiring surface learning. The validity of the 20 years research on Parent, Teacher and Child-based school entry screening is contained in Reddington & Wheeldon (2009)which can be sent to Prof. Hattie (also presented at the International Conference on Applied Psychology, Paris, July, 2014). Hi there! | Mitchell Institute, Current Issues in My Professional Context APC Week 26 Blog | Robyn shears, - , A question of values Debate 2 Response | steveboutilier, If you want to improve student learning, start here. their teachers the effect size was twice that of any other leadership dimension. The same issue is with Cooperative Learning. Ive been reading a book called Spark, by John Ratey. CHETL 3A-Teacher instructs the complex processes, . Hattie effect size list -256 Influences Related To Achievement. Hi, This loss of learning increases with grade level, so at the ages we are trying to maximise the use of high-impact teaching and learning strategies, we run the risk of much ofthat work being undone by Summertime Subsidence (d=-0.02). You can view his listhere. [], [] anything above a measurement of 0.4 is showing proof it is effective. A meta-analysis (435 studies, k = 994, N > 61,000) of empirical research on the effects of feedback on student learning was conducted with the purpose of replicating and expanding the Visible Learning research (Hattie and Timperley, 2007; Hattie, 2009; Hattie and Zierer, 2019) from meta-synthesis. The observation tools were tightly aligned with indicators of high-yield instructional strategies and allow principals to provide immediate, data-driven, focused instructional feedback to teachers [], [] Task3: Expect a years worth of progress Expectations are one of thegreatest influences on learning and achievement [], [] in advisory but also inside the classrooms, can be seen inJohn Hatties newest research Hattie Ranking: 195 Influences And Effect Sizes Related to Student Achievement. He has first published 138 effects in Hattie (2009) "Visible Learning", then 150 effects in Hattie (2011) "Visible Learning for Teachers" , and most recently a list of 195 effects in Hattie (2015) "The Applicability of Visible Learning to Higher Education". Thus, for example, class size is interpreted as a small effect size since it is 0.2 [], [] students are given areas they can improve that is actionable. Could you explain what is meant by collective teacher efficacy? La relacin docente/alumno tiene alto impacto en el aprendizaje de los alumnos. Hello !!! Selonles donnes de la vaste tude mene par Hattie (synthse de 800 mta-analyses), le genre des lves na pas nimpact significatif sur la russite scolaire. Si desentraamos [], [] to start would be John Hatties ranked list of influences by effect sizes. (Hattie) What does this mean, exactly? http://ivysherman.weebly.com/uploads/1/7/4/2/17421639/post_-_edd_1007_final_paper_pr.pdf. ar trnir fyrsta sti self-report grades. I have been a Hattie follower since 2009 and really believe in his research. I want to talk more about learning than teaching. | Mark's Learning Log, What is Formative Assessment? It could also be one reason John Hatties work and book, Visible Learning, appeals to so many educators. He promotes education through portfolio and people. [], [] it comes to high-yield classroom strategies, it seems that reflective processes pack the most punch. Creating strong relationships between students and those charged with educating them therefore will require adults to acknowledge the long-standing harms caused by racism in schools. [], [] Learning (2014) Hattie Ranking: Influences And Effect Sizes Related To Student Achievement, http://visible-learning.org/hattie-ranking-influences-effect-sizes-learning-achievement/ (site accessed 10 April [], [] of 15 years work. To those of us on the front lines one of the most important variables in learning is Focus/lack thereof. [], [] activity in John Hatties effect sizes for student achievement does not rank highly. Thank you very much. Effect size is calculated by taking the difference in two mean scores and then dividing this figure by the average spread of student scores (i.e. As the 0.4 SD effect size for one year's progress, should not be confused or conflated with the 0.4 SD effect size put forward by Professor Hattie as the average effect size for factors influencing education. https://ollieorange2.wordpress.com/2014/08/25/people-who-think-probabilities-can-be-negative-shouldnt-write-books-on-statistics/comment-page-1/#comment-545. Dear Kendra, Anyway, Hattie ranks about 1,000 different factors that contribute or dont to academic achievement. A series of short posts about specific elements of teaching practice that I think are effective and make life interesting. A childs wagon, a wheelbarrow, a half ton truck, a five ton truck are vehicles. Showing that an educational intervention has a positive effect is quite a feeble hurdle to overcome. Best wishes, However, if we focus only on the content, insisting that to be successful all students must meet [], [] what does Hatties meta-analysis say about feedback, micro-teaching, formative evaluation, etc?