What’s on the Variables poster
A 6-row table: Variable · Is.
The vocabulary every method question uses.
- Independent — What the researcher manipulates
- Dependent — What is measured
- Extraneous — Anything else that could affect the DV
- Confounding — An extraneous variable that varies with the IV
- Control — Held constant deliberately
- Operationalisation — The specific way a variable is measured
An extraneous variable adds noise. A confounding variable creates a false effect — that is the difference that matters.
Questions about the Variables poster
- What’s on the Variables poster?
- A 6-row table: Variable · Is. The vocabulary every method question uses. Independent — What the researcher manipulates; Dependent — What is measured; Extraneous — Anything else that could affect the DV; Confounding — An extraneous variable that varies with the IV; Control — Held constant deliberately; Operationalisation — The specific way a variable is measured. An extraneous variable adds noise. A confounding variable creates a false effect — that is the difference that matters.
- Who is the Variables poster for?
- Variables belongs to the Psychology section rather than to a school year, because life science is not something one grade owns. Anyone learning methods & statistics can pin it up — a beginner, a student mid-course, or someone revising years later.
- When should you use the Variables poster?
- If you cannot state how it is measured, it is not operationalised. A wall chart earns its place by being glanceable from where the work is happening, so Variables belongs on the wall where that life science work actually happens, within glancing distance, rather than filed away.
- What other posters go with Variables?
- Choosing a Test, Descriptive Statistics and Research Ethics sit alongside Variables in the Psychology section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.Choosing a TestDescriptive StatisticsResearch Ethics
- Is the Variables poster free to download and print?
- Yes. Variables downloads as a free PDF with no account, no email and no watermark, like everything else in the Psychology 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 Variables poster print at?
- Variables 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 Variables loses nothing.Printing guide
Related posters
Charts that sit alongside Variables on the same wall.
Browse every Psychology poster, or start from the full catalogue.