- Net Promoter Score (NPS)
- A loyalty metric calculated by subtracting the percentage of detractors (score 0β6) from the percentage of promoters (score 9β10) on a single 11-point recommendation question.
- Brand Equity
- The commercial value a brand name adds to a product beyond its functional attributes, driven by consumer perception, recognition, and loyalty.
- Customer Lifetime Value (CLV)
- The total gross profit a business expects to generate from a single customer across all future transactions, used to justify retention investment.
- Churn Rate
- The percentage of customers who stop purchasing from a brand within a defined period, typically calculated monthly or annually.
- Switching Costs
- The financial, time, or psychological costs a customer incurs when moving from one brand to a competitor β higher switching costs correlate with higher retention.
- Respondent Consent
- A documented agreement from a survey participant acknowledging how their data will be collected, stored, and used β required under GDPR, CASL, and most US state privacy laws.
- Data Controller
- The entity (typically the business) that determines the purposes and means of processing personal data collected through a survey.
- Likert Scale
- A five- or seven-point rating scale where respondents indicate their level of agreement or satisfaction, from 'strongly disagree' to 'strongly agree.'
- Advocacy Behavior
- Observable actions a loyal customer takes to promote a brand β referrals, social sharing, public reviews β that extend the brand's reach without direct advertising spend.
- Attitudinal Loyalty
- A customer's positive emotional and psychological attachment to a brand, distinct from behavioral loyalty, which is measured purely by repeat-purchase frequency.
- Anonymization
- The irreversible process of stripping personal identifiers from survey responses so that the data cannot be linked back to individual respondents.