I'm thinking of what the replication crisis means for figures like Jean Piaget and Marie Ainsworth. Go take a psych class and they'll be among the first you learn about. None of their stuff replicates. The curriculum I took at community college was mostly fake.

This looks like a reductive view of the field’s broad shifts from psychoanalysis to behaviorism, and again to cognitivism. The impact to practice in the 21st century has been minimal since the latter shift began in the mid-20th and most of the older intellectual vanguard are dead.