About Visible Learning
Visible Learning means an enhanced role for teachers as they become evaluators of their own teaching. Visible Teaching and Learning occurs when teachers see learning through the eyes of students and help them become their own teachers.
Visible Learning plus
is a professional development programme for teachers. It provides an in-depth review and change model for schools based on John Hattie's research. With a seminar and support series the Visible Learning plus team helps schools to find out about the impact they are having on student achievement.
It looks like bulkying has a positive effect: 0.24 on the site with all the rankings, but in an article quoting Hattie (I think) he said this was a negative effect: -0.24. This seems like an important one to correct or clarify.
Thanks for pointing this out.
I found the Hattie interview you mentioned: http://www.workingoutwhatworks.com/en-GB/Magazine/2015/2/John_Hattie_interview Hattie says: “Yes I am now close to 1200 meta-analyses (up from the 800 in VL). What is remarkable since I published the first study (in 1989 based on 134) is that the “story” underlying the data has hardly changed. Some of the more interesting (new) effects include Bullying (-.24), parental employment (.03), sleep (.07), single sex compared to coed schools (.08).”
But the data I visualized is based on this paper: “The applicability of Visible Learning to higher education.” There, Hattie lists “bullying” with an effect of 0.24. http://psycnet.apa.org/journals/stl/1/1/79/
Unfortunately none of the two texts provides the original meta-study to double-check the effect size. We should ask John Hattie for clarification.
Where can I find a clear explanation of the categories?
I am very interested in the mobility category and what is actually included and considered. How do I find that out?
Changing schools has a negative effect size. “Mobility” means mobility between schools and includes 3 meta-studies: Mehana (1997), Jones (1989), Galton & Willcocks (1983). Source: John Hattie (2009) Visible Learning, pp. 81/82.
I have heard that 0.7 effect size equates to a student moving ahead about 1.5 years in 1 year’s time. Is this true?