quantitative analysis
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Multilevel Models for Nested Data: When Your Dissertation Sample Is Not Independent (2026)
Pupils in schools, patients in clinics, employees in teams: clustered data violates the independence assumption behind every ordinary regression. What…
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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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Should I Remove Outliers From My Data? (2026)
Delete an outlier only when you can show it is an error. Here is how to detect extreme values, tell…
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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…