The most authoritarian lawmakers systematically refused to answer the survey

Evidence

Since Republicans were more likely to respond than Democrats (return rates of 29% and 24%, respectively, over all eight studies), the simplest explanation that fits all the facts would be that Republican Very Highs were particularly unlikely to respond, compared with Democratic Very Highs. — Bob Altemeyer, The Authoritarian Specter, 4455

Categorization

• QUESTION: The non-response bias argument is a testable methodological claim — did he examine early vs late responders within parties as a proxy for willingness?
• XREF: connects to: Marxist political answers exempted respondents from being classed authoritarian — Rolf Wiggershaus, The Frankfurt School: Its History,…, 711