The RWA scale achieved record measurement reliability among US lawmakers

Evidence

As for validity, the RWA Scale’s construct validity in this population has broken all records for the test. The mean interitem correlation across all respondents averaged .41-—higher even than that among the Canadian legislators—producing a Cronbach alpha of over .95. That means the signal-to-noise ratio in these data exceeds 19:1, giving the phrase “less than .05” a new meaning. You will have trouble finding many psychological test administrations that produced such loud, clear, and clean data with the primary measure. — Bob Altemeyer, The Authoritarian Specter, 3672

Categorization

• XREF: Measurement reliability matters for appraising the strength of the vault’s RWA-based claims about right-wing authoritarianism.