What’s on the Hypotheses poster
A 4-row table: Type · States · Use when.
Types, and when each is appropriate.
- Null — No difference or relationship — Always — it is what is tested
- Alternative — There is a difference — Default
- Directional (one-tailed) — Which way — Prior evidence supports a direction
- Non-directional (two-tailed) — A difference, direction unstated — No prior evidence
A hypothesis must be falsifiable and must name operationalised variables. 'Music affects mood' is neither.
Questions about the Hypotheses poster
- What’s on the Hypotheses poster?
- A 4-row table: Type · States · Use when. Types, and when each is appropriate. Null — No difference or relationship — Always — it is what is tested; Alternative — There is a difference — Default; Directional (one-tailed) — Which way — Prior evidence supports a direction; Non-directional (two-tailed) — A difference, direction unstated — No prior evidence. A hypothesis must be falsifiable and must name operationalised variables. 'Music affects mood' is neither.
- Who is the Hypotheses poster for?
- Hypotheses 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 Hypotheses poster?
- State the operationalised variables and the predicted direction, or state that there is a difference. A wall chart earns its place by being glanceable from where the work is happening, so Hypotheses belongs on the wall where that life science work actually happens, within glancing distance, rather than filed away.
- What other posters go with Hypotheses?
- Choosing a Test, Descriptive Statistics and Research Ethics sit alongside Hypotheses 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 Hypotheses poster free to download and print?
- Yes. Hypotheses 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 Hypotheses poster print at?
- Hypotheses 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 Hypotheses loses nothing.Printing guide
Related posters
Charts that sit alongside Hypotheses on the same wall.
Browse every Psychology poster, or start from the full catalogue.