Driver Analysis: Correlation from z-Scores and an Importance × Gap Matrix
This lesson is part of the course
In this lesson
You standardise answers as z-scores, measure how strongly each item moves with the engagement index, and rank the drivers by importance × gap to find where action pays off most.
Buy the course once for $9.99 to unlock every lesson and lab, the final exam and the certificate – lifetime access, no subscription.
Lessons in this course
- Response Rates: By Team, by Location and Overall Locked
- Favourability: Turning 1–5 Answers into % Favourable, Neutral and Unfavourable Locked
- Index Scores: From Items to Themes and a Weighted Engagement Index Locked
- eNPS: Promoters, Passives and Detractors by Team Locked
- Confidentiality: Minimum Group Sizes, Suppression and an «Other» Group Locked
- Year-over-Year Change: Score Deltas, a Meaningful-Change Threshold and a Heatmap Locked
- Driver Analysis: Correlation from z-Scores and an Importance × Gap Matrix Locked
- Capstone: Action Priorities per Team and the Survey Report Locked