👉 This is a dummy showcase based on a real project. The yoga chain setting is fictional.
You can view the live version here (‘wake up’ if needed). Please note that the multiple regression results differ from those in the article because the data in the script are generated randomly.
Summary
In 2025, student surveys at YepYoga, an imaginary chain of yogaschools showed an overall Net Promoter Score (NPS) of 57%. A closer look revealed that certain branches, especially those with newer teachers, received lower satisfaction scores and strongly influenced the overall result. Teacher quality and the atmosphere of the branch were found to be the most important factors for overall student experience, while tangibles (room, mats, sound) played only a small role.
Introduction
Student satisfaction is essential for return visits and positive recommendations. When comparing results with other yoga schools, it became clear that differences were not explained by the quality of facilities alone. This raised the question whether differences between branches and teachers could explain the lower scores.
The Net Promoter Score (NPS) is one of the leading indicators used in service organizations. Students are asked: “How likely are you to recommend this class to a friend?” on a scale from 0 to 10.
- Promoters (9–10) are loyal enthusiasts.
- Passives (7–8) are satisfied but unenthusiastic.
- Detractors (0–6) are unhappy clients.
NPS is calculated as % Promoters – % Detractors, producing a number between –100 and +100.
Method
A total of 200 student surveys collected between April and August 2025 were analyzed. Data were grouped by branch and teacher, then processed with a Python script. The analysis compared results for:
- Instructions
- Connection
- Adjustments
- Knowledge
- Tangibles (building, room, mats)
The students could rate these aspects on a scale from 1 to 5. They have also been asked how likely it is that they would recommend the class to a friend, on a scale from 0 to 10.
A multiple regression analysis was used to test which factors had the strongest influence on overall satisfaction and NPS.
Results
The results are shown in the table below, sorted by NPS. The left column contains the average of the responses of the guest survey on the question “How likely is it that you would recommend this class to a friend”. The right column shows the calculated NPS per branche.
The analysis shows that certain branches received lower satisfaction scores than others.
Interestingly, although students of the Flowstreet and Chakra street rated various aspects as low, but their overall satisfaction was not significantly affected.
The results also suggest a halo effect: when students are dissatisfied with one issue, this tends to lower
their ratings on other aspects as well—for example at the Eka street
NPS
The figure below shows the distribution of promoters, passives and detracters per branche.
The overall NPS was 57,0%. By excluding certain underperforming branches, the NPS rose significantly:
- Without Branch Eka Street: 59,8%
- Without Branch Hatha street: 58,6%
- Without both: 61,7%
This shows that weaker-performing branches strongly affect the overall score.
Class satisfaction
Regression analysis shows how different aspects of the student experience influence an outcome, in this case it shows which part of the student experience have the biggest effect on how much people would recommend the class to a friend. It doesn’t just look at the scores separately, but calculates their
relative weight.
- Instructions and knowledge had the strongest effect (coefficient 0.49 and 0.43) .
- Adjustments and connection also had a strong influence (coefficients 0.21 and 0.33).
- Tangibles had a smaller effect (0.04, not statistically significant).
This confirms that the way that teachers give instructions and their knowledge drive the student experience.
Conclusion
Student satisfaction at YepYoga in 2025 depends strongly on branch and teacher quality. Certain branches lowered the overall scores. Focusing on coaching these teachers, improving the adjustments, or creating more connections could raise satisfaction and significantly increase NPS.
Overall, instructions and knowledge are the key drivers of the yoga experience.
Discussion
The survey response rate was limited, so results may not represent all students equally. Students
who had a very positive or very negative experience are more likely to complete the survey, introducing
potential bias.
Satisfaction ratings are also subjective. A poor experience with the adjustments that a teacher gives may influence how students rate unrelated aspects such as tangibles or knowledge— a classic halo effect.
Expectations shaped by branch reputation and pricing may also impact perceived quality.
Suggestions for Further Research
- Repeat the analysis across different yoga chains and in different seasons.
- Link satisfaction scores to teacher tenure to test if experience level predicts ratings.
- Use advanced statistical methods such as partial correlations or mediation analysis to explore halo effects further.
- Add text analysis on open feedback to capture nuance beyond scores.
👉 This is a dummy showcase: the yoga chain setting and teacher examples are fictional. The original project was created for another company but cannot be disclosed.
Still, this version illustrates how I approach survey data, apply statistical methods, and build dashboards that turn feedback into actionable insights.
👉 Want this for your own company, project, or organization?
Get in touch with me — I’d be happy to explore how we can turn your data into clear, actionable insights.
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