Pick a concept. See the graph. Follow the SPSS clicks.
Every test in STAT 353 — from t-tests up to MANOVA, PCA and cluster analysis — with a plain-English definition, when to use it, the hypotheses, assumptions, an interactive picture of the idea, and the exact SPSS menu path.
🧭 Which test should I use?
Answer a few questions about your variables. The logic follows your course's decision tree: start from your dependent variable(s), then count your independent variables (factors), their levels, and whether measurements are repeated on the same subjects.
⚖️ Compare the tests side by side
The heart of the confusion is usually one-way vs. two-way ANOVA vs. MANOVA vs. repeated measures. Here they are in one grid — number of factors, number of outcomes, what null hypothesis is tested, and what SPSS gives you.
✍️ Turn your output into a conclusion
You ran the test — now what do you write? This follows your instructor's Four Steps of Hypothesis Testing and the exact phrasing from the slides: Reject H₀ / Fail to reject H₀, "There is sufficient evidence that…", and always explain the decision to address the original claim. Use the steps, then let the builder draft the wording from your numbers.
🛠️ Conclusion builder
Pick your test, type in what SPSS gave you, and it writes a properly-worded conclusion + the APA-style stats line you can paste into a report.
🚫 The mistakes that cost marks
🖱️ SPSS quick steps
Menu paths only — the fast reference. Open the Concept Explorer for the full click-by-click steps and how to read the output.
🔖 Glossary
The words that show up in every module and every SPSS output table.
📝 Learn from your graded feedback
Built by comparing your actual submitted answers (HW4, 5, 7, 8, 9 & midterm) against the instructor's feedback. The good news: almost none of the lost points were for choosing the wrong test — they were for wording, reading the right cell of the SPSS output, CI logic, and finishing every part. Most are the same habit repeated across assignments, so a few fixes recover a lot of points.
🔁 Your recurring themes (fix these first)
Ranked by how often they cost you points across assignments.
🗣️ Say this, not that — quick reference
The exact word-swaps that recover the most points.
📄 Assignment by assignment
Each flagged item with what was marked, the correct version, and how to lock it in.
✅ Pre-submission checklist
Run through this before you hand in any homework or exam — tick as you go.