# What is key driver analysis?

Key Driver Analysis uses a statistical technique known as [Pearson correlation](https://docs.talentmap.com/knowledge-base/step-5-analyze-interpret-and-report/compass-reports/reporting-faq/what-is-pearson-correlation) to identify patterns in the responses of employees. By using Pearson correlation, it is possible to identify which questions have the strongest and most meaningful association with your employee engagement score.

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When you prioritize your intervention efforts based on the results of statistical analysis, the results are far superior to simply basing intervention efforts on the lowest scoring items in a survey. Typically the lowest scoring items (like compensation) have a very weak connection with employee engagement, and thus even large investments to improve these low scoring items do not result in large improvements in engagement.

### How does TalentMap determine key drivers for my organization?

TalentMap has a scientific method for identifying key drivers of engagement for your specific organization. Our methodology takes into consideration the size of your organization, Pearson correlation, comparison data and overall performance scores.