Personality traits can be measured through informant reports rather than self-reports alone

Evidence

RWA. Three items (Rowatt, LaBouff, Johnson, Froese, & Tsang, 2009) assessed perceptions of RWA (e.g., “I [He or she] believes that people should be made to show respect for America’s traditions”). Participants indicated the extent to which they disagreed or agreed to the statements on a 7-point scale ( .70), and informants indicated the extent to which they felt a statement was inaccurate or accurate of the participant on a 5-point scale ( .70). — Sherman A. Lee, Chelsea A. Reid, Stephen D. Short, Jeffrey A. Gibbons, Ruth Yeh, and Matthew L. Campbell, Fear of Muslims, 95

Categorization

• XREF: Connects to self-other agreement and informant-report methodology in personality/social psychology; also to the broader reproducibility question of whether self-report attitudes track observable behavior.