Heteroskedasticity Test Calculator Excel Template
Heteroskedasticity Test Calculator Excel Template
Interactive Excel Financial Model
Download, customize, and integrate into your own analysis
What's Included
- Interactive financial model with live Excel formulas
- All formulas visible and fully editable
- Professional formatting with color-coded inputs & outputs
- Formula reference sheet with variable definitions
- Step-by-step instructions sheet
- Compatible with Microsoft Excel 2016 and later
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Price range: $0.00 through $20.00
Diagnose heteroskedasticity in OLS regressions with BP test, White test, and robust SE comparison. Live Excel formulas update automatically.
Online Calculator vs Excel Template
| Feature | Online | Excel |
|---|---|---|
| Instant use — no download | ✓ | — |
| Works offline | — | ✓ |
| Customize formulas & layout | — | ✓ |
| Save & share with colleagues | — | ✓ |
| Integrate into your own models | — | ✓ |
| Print-ready formatting | — | ✓ |
About This Template
Download this Heteroskedasticity Test Calculator Excel Template to diagnose non-constant variance in your OLS regression residuals. Run Breusch-Pagan tests, White tests, or compare robust vs OLS standard errors — all with live Excel formulas that update automatically.
What You Can Calculate
This template supports three diagnostic modes:
- Breusch-Pagan Test — Computes the BP test statistic (n × R²), chi-squared critical value, and p-value to detect heteroskedasticity under normality assumptions
- White Test — More general test that does not require normality, using auxiliary regression on levels, squares, and cross-products
- Robust SE Comparison — Compare heteroskedasticity-consistent standard errors to OLS standard errors and see how inference changes
Required Inputs
For BP/White tests: sample size (n), number of regressors (k) or auxiliary terms (q), auxiliary R-squared from your residual regression, and significance level. For robust SE mode: your OLS and robust standard errors plus the coefficient estimate.
Methodology
The Breusch-Pagan and White tests use the LM principle: test statistic = n × R²_aux follows a chi-squared distribution with k (BP) or q (White) degrees of freedom under the null hypothesis of homoskedasticity. Reject H₀ when the test statistic exceeds the critical value.
Assumptions and Limitations
- BP test assumes normally distributed errors (sensitive to non-normality)
- White test is more general but requires more degrees of freedom
- Robust SE mode compares pre-computed standard errors; it does not calculate HC estimates
- Chi-squared approximation may be unreliable for small samples (n less than 30)
Frequently Asked Questions
The Excel template lets you save your heteroskedasticity test results alongside your regression analysis, include them in reports, and work offline. You can also add custom notes and extend the template with additional diagnostic tests for your specific research project.
Yes. Duplicate the Calculator sheet (right-click tab > Move or Copy > Create a copy) to test different specifications or compare BP vs White results side-by-side. Each copy retains all formulas and updates independently.
After running your OLS regression (in Stata, R, Python, or Excel), note the auxiliary R-squared from the heteroskedasticity diagnostic output and enter it in this template. The test statistic, p-value, and decision will calculate automatically based on your sample size and specification.
A fully interactive financial model with live Excel formulas, an Instructions sheet with usage guide, and a Formula Reference sheet with variable definitions and model assumptions. All formulas are visible and editable.
Microsoft Excel 2016 or later. The template uses standard Excel formulas only — no macros, VBA, or add-ins required.
Yes. All cells are fully editable. You can modify any formula, add your own calculations, change formatting, or integrate the model into your existing spreadsheets.
The online calculator runs in your browser for quick calculations. This Excel template gives you a portable, offline financial model you can customize, save, share with colleagues, and integrate into your own analysis.
This template is provided for educational and personal use. You may use it in your own professional analysis and presentations. Redistribution or resale of the template itself is not permitted.
You can re-download the latest version from your account or by requesting a new download link. Free downloads are limited to 5 per email address per month.
