# Study: AVMetrics’ Predictive Testing Methodology

> In this study, we have performed a comparative side-by-side analysis of both our Legacy and our new PTM™ testing systems. We used an outcomes analysis to see how the models were anchoring their valuation estimates after a listing price was published. We obtained value estimates for the same properties for use in both testing methodologies to ensure that the sampled properties were identical. This gave us a measure of the difference in the model(s) testing outcomes between the two methodologies. We believe that this new testing method establishes a new “normal” for the prediction accuracy of models uninfluenced by listing price testing outcomes.

- Source: https://avm.digisavvy.dev/blog/avmmethodologytestingstudy-2/
- Author: AVMetrics
- Published: August 29, 2024
- Category: Whitepapers

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## Current AVM Testing Methodologies versus our  
new Predictive Testing Methodology (PTM™)

## OR

## How Listing Prices Made Current AVM Testing  
Obsolete and How to Fix It

### **[AVMetrics’ PTM Testing Methodology](https://avm.digisavvy.dev/wp-content/uploads/2026/10/National-PTM-POC-2023.pdf)**

## **Overview**

In this study, we have performed a comparative side-by-side analysis of both our Legacy and our new PTM™ testing systems. We used an outcomes analysis to see how the models were anchoring their valuation estimates after a listing price was published. We obtained value estimates for the same properties for use in both testing methodologies to ensure that the sampled properties were identical. This gave us a measure of the difference in the model(s) testing outcomes between the two methodologies. We believe that this new testing method establishes a new “normal” for the prediction accuracy of models uninfluenced by listing price testing outcomes.