Falsifiable beliefs defended against contradicting evidence define dogmatism in practice

Evidence

But I believe we eventually do figure out the truth, and our understanding of ourselves and our universe becomes more accurate every day. We can run experiments, and we can find out when we are wrong. People who believe homosexuals have chosen by free will to be sexually attracted to their own gender have, it seems to me, a lot of findings to explain away. If they cannot do so but still insist they are right, that smacks of dogmatism to me. — Bob Altemeyer, The Authoritarian Specter, 2708

Categorization

• DEFINE: Operationalizes dogmatism as refusing to explain away contradicting evidence — a working definition that stays falsifiable and symmetric.