Released in November 2020 as a critical fix pack for the 2020 flagship version, IBM SPSS Statistics v27.0.1 (x64) addresses compatibility issues and refines core workflows, building on v27’s innovations in power analysis, effect sizes, and bootstrapping for researchers, analysts, and data scientists tackling complex datasets.
Key Highlights
- Bootstrapping & Data Preparation in Base – Now standard in the Base edition (previously add-ons), enabling robust resampling and automated data cleaning without extra modules.
- Power Analysis Tool – New procedure for study planning, calculating required sample sizes and statistical power for t-tests, ANOVA, and more to optimize research designs.
- Effect Size Enhancements – Added Cohen’s d, eta-squared, and confidence intervals for T-TEST and ONEWAY, providing deeper insights into practical significance.
- Paired/Independent-Samples Proportions – New tests (e.g., McNemar, Wald) with confidence intervals for binary data analysis in medical and social research.
- Matrix Command Upgrades – Support for BETA CDF, probability density functions, and improved scripting for advanced custom computations.
- Chart Builder Bubble Plots – Visualize three variables (x, y, size) for multivariate trends; high-res EPS export for publication-ready graphics.
- Stability Fixes – Resolves R library loading on macOS Big Sur Beta, Gskit SSL connections, and other crashes for reliable cross-platform use.
System Requirements
- Windows 10/11 64-bit
- 4 GB RAM minimum (8 GB+ recommended)
- 1.6 GHz processor or faster
- 4 GB free disk space
- 1024×768 display resolution