Matched-Guise Technique

In the matched-guise technique, a single speaker produces all the varieties, so the voice is held perfectly constant and only the variety changes. In the verbal-guise technique, different speakers each produce one variety, which is more naturalistic and avoids the difficulty of finding authentic bidialectal speakers but reintroduces speaker differences as a potential confound. The two are complementary, with matched guise offering tighter control and verbal guise offering greater authenticity.

The deception — telling listeners they hear different speakers — is what prevents them from guarding their responses and is essential to capturing covert attitudes. It is generally considered ethically acceptable for low-risk attitude research provided participants are debriefed afterward and the deception causes no harm, in line with standard research-ethics guidelines for justified minor deception. Researchers obtain ethics approval and inform participants of the true design after the task.

Trait scales typically span two recurring dimensions identified in the literature: status or competence (e.g., intelligent, educated, ambitious, successful) and solidarity or social attractiveness (e.g., friendly, kind, trustworthy, sociable). A common finding is that prestige varieties score higher on competence while non-standard or local varieties score higher on solidarity, capturing the trade-off at the heart of language attitudes.