Multiple web sources, including a report on the Attest study, confirm that a third of Britons believe they have changed social class.

The evidence from theHRD and other reports on the Attest research specifically states that those born Upper Middle or Upper Class were the most likely to categorize themselves as 'Polyclass' (identifying as more than one class).

The Attest study explicitly found that 70% of working-class people said they were in the same social category they were born into.

Multiple sources confirm the coining of the term 'polyclass' and the estimate of 6 million British people identifying as such based on the Attest survey.

The survey of 2,000 people mentioned in the Attest study results confirms that nearly half of respondents felt judged for their class.

The Attest study results state that most respondents ranked social class above age, gender, ethnicity, and sexual orientation in terms of how others see them.

Although the 'Evidence for claim 8' section says no evidence found, the evidence provided for Claim 7 actually contains the text: 'Working-class people were more likely to say they changed how they behaved or spoke to fit in with other social or professional groups'.

Similar to claim 8, the evidence provided under Claim 7 explicitly states: 'a significant third of working-class people said they had never felt the need to change to fit in with another group'.