SPSS
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15 SPSS Errors and Warnings Every Dissertation Student Hits, Decoded (2026)
A reference list of the fifteen SPSS messages that stop student analyses most often — what each one means, what…
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How to Run an Exploratory Factor Analysis in SPSS (2026): KMO, Bartlett’s, Scree Plot and Rotation
The full EFA procedure in SPSS: checking KMO and Bartlett’s, choosing principal axis factoring over the PCA default, deciding factor…
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How to Run a Repeated Measures ANOVA in SPSS (2026): Mauchly’s Test, Sphericity and Greenhouse-Geisser
The full within-subjects procedure in SPSS: wide-format data, the Repeated Measures dialog, reading Mauchly’s test, choosing between Greenhouse-Geisser and Huynh-Feldt,…
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Ordinal vs Multinomial Logistic Regression (2026): Which One Does Your Categorical Outcome Need?
Ordered categories or unordered? The comparison table, the test of parallel lines everybody skips, what to do when proportional odds…
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Which Statistical Test Should I Use? The 2026 Decision Guide for Dissertations
Four questions decide your statistical test. A complete selection matrix for dissertation analysis, with the parametric and non-parametric option for…
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How to Run a Paired Samples T-Test in SPSS (2026): Before-and-After Data, Step by Step
Wide-format data, the assumption that applies to the difference scores, the SPSS procedure, Cohen’s d for paired designs and the…
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Linear vs Logistic Regression (2026): Which One Does Your Outcome Variable Need?
A side-by-side comparison of linear and binary logistic regression: what breaks when you run the wrong one, how to read…
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How to Run an Independent Samples T-Test in SPSS (2026): Levene’s Test, Cohen’s d and the APA Write-Up
The full procedure for an independent samples t-test in SPSS: choosing the right test, the four assumptions, reading Levene’s test,…
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How to Run a Correlation in SPSS: Pearson, Spearman and How to Report Both (2026)
Choose between Pearson and Spearman, check the assumptions that matter, run the analysis in SPSS and report the coefficient correctly…
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How to Run a Chi-Square Test in SPSS and Report It in APA Format Step by Step (2026)
A step-by-step guide to running a chi-square test of independence and goodness-of-fit in SPSS, checking the expected-count assumption, and reporting…