在知识产品的运营中，增强用户黏性的活动包括哪些？

社会主义核心价值观的强大生命力来源于哪里？

国有经济在国民经济中起主导作用的主要体现是什么？

在NLP中，'锚定'（Anchoring）是指什么？

A researcher is conducting an experiment with two different groups of participants. One group is exposed to a novel learning method, while the other is taught using a conventional method. They find the group using the novel method shows improved learning speed and retention during an initial test, but that the same group performs worse in later assessments. Which of the following best describes the primary issue with this novel learning method?