The three-item satisfaction measure at the heart of the American Customer Satisfaction Index, widely adapted in academic research.
| Construct measured | Overall customer satisfaction |
|---|---|
| Developed by | Fornell, Johnson, Anderson, Cha & Bryant (1996) |
| Original publication | Fornell, C., Johnson, M. D., Anderson, E. W., Cha, J., & Bryant, B. E. (1996). The American Customer Satisfaction Index: Nature, purpose, and findings. Journal of Marketing, 60(4), 7–18. https://doi.org/10.2307/1251898 |
| Number of items | 3 (within a larger structural model of expectations, quality, value, complaints and loyalty) |
| Response format | 10-point rating scales with item-specific anchors (e.g., Very dissatisfied to Very satisfied) |
Unidimensional latent satisfaction indicator formed from three reflective items: overall satisfaction, confirmation/disconfirmation of expectations, and distance from the customer's ideal product or service.
Composite reliabilities for the three-item latent are commonly reported around .85–.95 in ACSI-style PLS models and academic adaptations.
Embedded in a nationally benchmarked cause-and-effect model estimated on hundreds of firms; the satisfaction latent shows strong nomological validity (driven by expectations, quality and value; driving complaints and loyalty). Academic studies routinely adapt the three items, often on 7-point scales.
Consumers of firms, industries and government agencies; national satisfaction barometers in many countries follow the same design (e.g., ECSI).
United States (building on the Swedish Customer Satisfaction Barometer). Adapted for national indices across Europe and Asia.