This lecture identifies several pernicious intellectual trends in modern psychology. For example, materialism (despite the collapse of one of its manifestations, behaviorism) is still influential among psychologists, in fields such as artificial intelligence. Determinism is alive and well among the promoters of "victimhood" and the defenders of addictions. Subjectivism in the realm of values is considered an axiom when it comes to dealing with conflicts among people. And general epistemological chaos in psychology leads to the denial of the validity of introspection. Dr. Locke shows why modern psychology cannot escape the errors of modern philosophy.