Скачать или смотреть One-Way ANOVA Follow-Up Tests in SPSS Explained (Fisher LSD vs. Tukey) | Decode the World Ep. 28

This episode of Decode the World: An Introduction to Statistics marks a big milestone... you wrap up the final significance test of the course. After mastering the one-way ANOVA, now it’s time to complete the story with follow-up comparisons (a.k.a. post-hoc tests) in SPSS.

You’ll see exactly
👉how researchers figure out which group differs from which
👉why ANOVA must act as the gatekeeper before running any follow-up analyses
👉how different post-hoc tests (Fisher LSD, Tukey HSD, Bonferroni, SIDAK, Games-Howell, Scheffé) each tell a slightly different statistical “story.”

Using the real psychology study “Making a Difference Matters: Impact Unlocks the Emotional Benefits of Prosocial Spending” (Aknin et al.), we walk through a full “Do-It-With-Me” SPSS demo: setting up your conditions, labeling factors, running the ANOVA, and interpreting Fisher’s LSD and Tukey’s HSD side-by-side. You’ll also learn how to check descriptives to catch SPSS quirks, why Type I error control matters, and how to judge whether a researcher chose an appropriate follow-up test... not just any test.

🏈*What We Tackle*
🔄 Why ANOVA must be significant first: the “gatekeeper” that protects against Type I error inflation
🐟🦃 Fisher’s LSD vs. Tukey’s HSD: how two follow-up tests produce different interpretations
📊 Interpreting SPSS post-hoc tables: I vs. J, mean differences, p-values, and those helpful asterisks
🧠 The Aknin et al. study recap: how meaningful vs. non-meaningful giving affects subjective well-being
📂 Setting up SPSS correctly: numeric condition coding, value labels, and catching common errors
🔍 Why multiple follow-up tests exist: balancing power vs. conservatism across research contexts
🕵️ The detective analogy: ANOVA = the crime, post-hoc = solving the mystery

🎯 Key Skills You’ll Build
🗂️*Creating ANOVA-ready datasets* with numeric factors and human-readable labels
👀 Reading ANOVA and post-hoc tables without getting overwhelmed
📈 Interpreting F, df, p, and effect sizes (partial eta squared) in context
🔎 Evaluating follow-up test choices based on sample size, variance assumptions, and research goals
✍️ Translating statistical output into APA conclusion sentences
🕵 Identifying meaningful group differences using multiple post-hoc approaches

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🎯 Real psychology studies, step-by-step
🧑‍💻 SPSS workflows you can reproduce for homework and research

💭 Comment: Which follow-up test's story do you believe? Fisher’s LSD or Tukey’s HSD? 👇Let’s compare notes below 👇

#ANOVA #PostHocTests #SPSS #Statistics #FisherLSD #TukeyHSD #Psychology #DataAnalysis
#InferentialStatistics #ProsocialSpending #AkninStudy #ResearchMethods #DecodeTheWorld #PsychStats