Data Analysis
Browse articles by category and topic.
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Survey Response Rate Statistics 2026: What Rate Should You Actually Expect?
Benchmark response rates from published meta-analyses, the 11-to-12-point web-mode penalty, the long decline in participation — and the finding that…
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How to Build a Data Dictionary for Your Thesis: Variable Documentation, Syntax Files and the Cleaning Log (2026)
The nine fields every variable entry needs, naming and missing-value conventions, why the SPSS Paste button beats clicking OK, and…
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How to Run PLS-SEM in SmartPLS (2026): Measurement Model, Bootstrapping and What to Report
The full PLS-SEM sequence in SmartPLS: reflective vs formative specification, loadings, AVE and HTMT, why formative constructs use entirely different…
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CB-SEM vs PLS-SEM (2026): Which Structural Equation Modelling Method Should Your Thesis Use?
CB-SEM asks whether your model reproduces the observed covariances; PLS-SEM asks how much variance it explains. Common factors vs composites,…
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Cluster Analysis in a Dissertation (2026): k-Means, Hierarchical Clustering and Latent Class Analysis
Finding groups that were never given: which of the three methods your data need, the decisions that determine the solution,…
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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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Survival Analysis for Your Dissertation (2026): Kaplan-Meier, the Log-Rank Test and Cox Regression
When your outcome is how long until something happened, censoring breaks every ordinary method. The full walkthrough: Kaplan-Meier curves, the…
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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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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…