Net Promoter Score Research for Customer Loyalty and Brand Advocacy
Net Promoter Score (NPS) is a widely used customer loyalty metric that helps organisations understand how likely customers are to recommend a product, service or brand to others.
Census Market Research designs and manages NPS studies that go beyond a single score. Our approach helps organisations understand the reasons behind customer advocacy, identify sources of dissatisfaction and explore the factors influencing loyalty and future customer behaviour.
NPS research typically categorises respondents as Promoters, Passives and Detractors, providing a structured view of customer sentiment while allowing further analysis across customer segments, locations, service channels and experience touchpoints.
NPS programmes can support customer experience improvement, loyalty tracking, service benchmarking and broader customer relationship strategies across multiple industries.
The real value of NPS comes from understanding why customers recommend — or do not.
Combining the NPS question with diagnostic customer feedback can help organisations identify the experiences, service attributes and pain points associated with advocacy or dissatisfaction.
Why Use Net Promoter Score Research?
Customer satisfaction and customer loyalty are closely related, but they are not identical. NPS provides an additional perspective by focusing on customers' willingness to recommend an organisation, product or service.
Move From a Score to the Customer Experience Behind It
NPS becomes more actionable when organisations analyse recommendation behaviour alongside service experiences, product perceptions, customer journeys and open-ended feedback.
Customer Loyalty
Understand the strength of customer advocacy and how willingness to recommend differs across customer groups.
Loyalty Drivers
Explore which service, product and experience factors are associated with stronger or weaker recommendation.
Detractor Insights
Identify recurring pain points and service issues among customers least likely to recommend the brand.
Performance Tracking
Repeat NPS measurement over time to monitor changes in advocacy and customer sentiment.
Promoters, Passives and Detractors
NPS groups respondents according to their likelihood to recommend, helping organisations understand differences between stronger advocates and less satisfied customers.
Promoters
Customers giving a score of 9 or 10 are classified as Promoters. Further analysis can help identify the experiences associated with stronger advocacy.
Passives
Customers scoring 7 or 8 are classified as Passives. Their feedback can help identify areas where the experience may need to become more distinctive or compelling.
Detractors
Customers scoring from 0 to 6 are classified as Detractors. Their responses can highlight service problems, experience gaps and potential relationship risks.
What We Analyse in an NPS Programme
The overall NPS score provides a useful summary metric, but diagnostic analysis helps explain what is driving customer advocacy and dissatisfaction.
NPS research can be combined with broader customer satisfaction research to examine satisfaction, recommendation and customer experience together.
Recommendation Drivers
Identify experiences and service attributes associated with stronger customer advocacy.
Reasons for Detractor Scores
Analyse customer feedback to understand recurring dissatisfaction and service weaknesses.
Customer Segment Differences
Compare NPS results across relevant demographic, behavioural, value or customer relationship segments.
Touchpoint Performance
Explore whether recommendation differs according to specific service channels or customer experiences.
Open-Ended Feedback
Use qualitative comments to add context to promoter, passive and detractor scores.
NPS Survey Methodologies
NPS can be collected through different quantitative channels depending on customer accessibility, sample requirements, database availability and the overall research design.
CATI
Interviewer-led telephone NPS surveys with customers and service users.
CAWI
Online NPS surveys for digitally accessible customer audiences and larger sample programmes.
Face-to-Face
In-person recommendation and customer experience research at suitable physical service locations.
Hybrid NPS Research
Combine suitable methodologies where separate customer segments require different participation channels.
Key Benefits of NPS Research
NPS research can help organisations monitor customer advocacy, understand loyalty-related experiences and identify where customer relationships may require greater attention.
Understand Customer Loyalty
Measure willingness to recommend and examine differences across relevant customer groups.
Identify Service Weaknesses
Detractor feedback can highlight recurring service problems and experience gaps.
Understand Brand Advocacy
Explore why some customers are more willing than others to recommend the organisation.
Support Customer Retention
Identify experiences that may contribute to weaker customer relationships and potential dissatisfaction.
Track CX Performance
Monitor NPS alongside other customer experience indicators across repeated research waves.
Prioritise Improvement
Combine recommendation scores with diagnostic feedback to identify areas that deserve management attention.
NPS and CSAT Measure Different Parts of the Customer Relationship
NPS focuses on willingness to recommend, while CSAT generally measures satisfaction with an experience, interaction, product or service. Using them together can provide a broader view of customer sentiment.
NPS: Advocacy and Relationship Strength
NPS can help organisations understand how strongly customers are willing to advocate for the brand and where differences exist between Promoters, Passives and Detractors.
CSAT
Measures satisfaction with specific experiences, services or interactions.
NPS
Measures customer willingness to recommend and provides an advocacy-focused loyalty indicator.
Use Them Together
Combining CSAT research with NPS can connect specific customer experiences with broader recommendation behaviour.
Track Over Time
Both indicators can be monitored across research waves to understand changes in customer sentiment.
The score starts the conversation. The reasons behind it create the insight.
Census Market Research supports NPS programmes with multi-channel data collection, customer segmentation, loyalty driver analysis, benchmarking and actionable customer experience reporting.
Our Net Promoter Score Research Process
Effective NPS research combines a clear measurement framework with structured data collection, customer segmentation and diagnostic analysis. The objective is not only to calculate the score, but also to understand the customer experiences behind it.
NPS Survey Design
Define the research objectives, customer groups, survey timing, recommendation question and supporting diagnostic questions.
Data Collection
Collect customer feedback through CATI, CAWI, face-to-face surveys or an appropriate combination of research channels.
NPS Score Calculation
Classify respondents as Promoters, Passives and Detractors, then calculate NPS by subtracting the percentage of Detractors from the percentage of Promoters.
Driver Analysis
Examine the customer experiences, service attributes and other factors associated with stronger or weaker recommendation behaviour.
Customer Segmentation
Compare NPS results across customer types, locations, channels, products or other relevant segments.
Benchmarking
Compare results across time periods, business units, service channels or other appropriate internal benchmarks.
Insight Reporting
Present the score alongside customer drivers, detractor pain points, promoter strengths and improvement priorities.
How Net Promoter Score Is Calculated
Respondents are asked how likely they are to recommend a company, product or service using a scale from 0 to 10. Their responses are then grouped into three categories.
The final NPS is calculated as the percentage of Promoters minus the percentage of Detractors. Passives are included in the total respondent base but are not directly used in the subtraction.
Promoters
Customers giving scores of 9 or 10 are classified as Promoters.
Passives
Customers giving scores of 7 or 8 are classified as Passives.
Detractors
Customers giving scores between 0 and 6 are classified as Detractors.
Industries We Support Through NPS Research
NPS can be adapted to different customer journeys and service environments, allowing organisations to monitor advocacy and loyalty-related experiences across multiple industries.
Banking & Financial Services
Measure recommendation and loyalty across branch, digital banking, products and overall customer relationships.
Automotive
Track advocacy across vehicle purchase, dealership, ownership, servicing and after-sales experiences.
Healthcare
Measure recommendation and experience among appropriate healthcare customers, patients and stakeholders.
Retail & E-Commerce
Understand advocacy across store, digital shopping, customer service and post-purchase experiences.
Telecommunications
Monitor customer advocacy across mobile, internet, service support and overall provider relationships.
Hospitality & Tourism
Measure guest recommendation across booking, arrival, service delivery and overall hospitality experiences.
Airlines & Aviation
Track passenger advocacy across booking, airport, boarding, onboard service and other journey touchpoints.
Government & Public Sector
Measure recommendation and service sentiment across relevant public-service and citizen experience programmes.
Technology & IT
Understand advocacy among users of software, devices, platforms and technology services.
Analyse the Drivers Behind NPS
The overall score is useful for tracking, but the greatest value often comes from understanding which experiences are associated with Promoters and which issues are creating Detractors.
Service Quality
Explore whether staff interactions, responsiveness and service delivery influence recommendation behaviour.
Product Experience
Understand how quality, reliability and product performance relate to customer advocacy.
Customer Journey
Identify touchpoints that contribute positively or negatively to recommendation.
Value Perception
Explore whether customers believe the experience delivers appropriate value relative to expectations.
Problem Resolution
Understand whether complaint handling and support experiences contribute to detractor behaviour.
Open-Ended Feedback
Analyse customer comments to add context and explanation to the numerical NPS result.
Consistency Matters When Tracking NPS Over Time
When NPS is used as a tracking measure, changes in sample design, timing, survey channel or customer population can affect comparability between waves.
A well-structured programme therefore aims to maintain appropriate methodological consistency while also analysing changes across customer segments and service experiences.
NPS can also be used alongside customer satisfaction surveys to connect recommendation behaviour with detailed experience measurement.
Why Census Market Research?
Frequently Asked Questions About NPS Research
Common questions about NPS calculation, customer segmentation, benchmarking and loyalty research.
How is Net Promoter Score calculated?
NPS is calculated by subtracting the percentage of Detractors from the percentage of Promoters. Passives are included in the total response base but are not directly included in the subtraction.
What are Promoters, Passives and Detractors?
Promoters give scores of 9–10, Passives give scores of 7–8, and Detractors give scores from 0–6 on the standard recommendation question.
Can NPS be tracked over time?
Yes. Recurring NPS studies can help organisations monitor changes in customer advocacy across different research waves.
Can NPS be compared across customer segments?
Yes, where the sample supports comparison. Results can be analysed across locations, products, channels, customer types and other relevant segments.
Is NPS the same as customer satisfaction?
No. NPS focuses on willingness to recommend, while CSAT research focuses more directly on satisfaction with products, services or specific experiences.
Can NPS be collected through telephone and online surveys?
Yes. NPS can be collected through CATI, CAWI, face-to-face surveys or suitable hybrid methodologies depending on the research design.
A useful NPS programme explains the score, not just reports it.
Census Market Research supports NPS programmes from survey design and data collection through score calculation, driver analysis, customer segmentation, benchmarking and insight reporting.
