Questions about the Reading An Effect Size poster

What’s on the Reading An Effect Size poster?

The rule, 3 worked examples, and the mistake everyone makes. An effect size expresses a difference in standard deviations. It is comparable only b…; d = (mean of group A - mean of group B) / pooled SD; d = 0.1 = Small; d = 0.4 = Moderate; d = 1.0 = Suspect; Common mistake: Ranking interventions by effect size across different studies → Compa…. Educational reference. Hattie's rankings are widely used and widely criticised for exactly this pooling problem. Read the underlying studies.

Who is the Reading An Effect Size poster for?

Reading An Effect Size belongs to the Education section rather than to a school year, because humanities is not something one grade owns. Anyone learning policy & systems can pin it up — a beginner, a student mid-course, or someone revising years later.

When should you use the Reading An Effect Size poster?

Use it before an intervention is chosen because it sits high in a toolkit. A wall chart earns its place by being glanceable from where the work is happening, so Reading An Effect Size belongs on the wall where that humanities work actually happens, within glancing distance, rather than filed away.

What other posters go with Reading An Effect Size?

What Counts As Evidence, Accountability and Class Size sit alongside Reading An Effect Size in the Education section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.What Counts As EvidenceAccountabilityClass Size

Is the Reading An Effect Size poster free to download and print?

Yes. Reading An Effect Size downloads as a free PDF with no account, no email and no watermark, like everything else in the Education section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence

What size does the Reading An Effect Size poster print at?

Reading An Effect Size is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Reading An Effect Size loses nothing.Printing guide