1. Such a factor structure is usually not helpful to the research purpose. 2. Social class is one of the prominent factors structuring taste. 3. As such, no unified underlying factor structure is agreed upon. 4. The five factor structure has been replicated in peer reports. 5. Thus, it may currently be concluded that the factor structure of the NPI is unknown. 6. Pomp said his study never looked at the single-sales-factor structure as an alternative for New York. 7. While the individual data yielded the expected five-factor structure , the country-level analysis yielded only a two-factor solution. 8. The validity ( content, construct, convergent ), and factor structure of the CTI have been well established. 9. The authors of the BDI-II have demonstrated that the factor structure of the BDI-II changes with population assessed. 10. Essentially the same factor structure emerged. 