Those who learned that interests are fixed throughout a person’s life were less captivated by [information unrelated to] their [own] interests.
…The authors also had students learn about either fixed or growth theory and then exposed them to a new interest: Astronomy. First, they had them watch a video made by The Guardian for a general audience about Stephen Hawking’s ideas. It was easy to understand and entertaining. Then the authors had the students read a highly technical, challenging article in the academic journal Science about black holes. Despite saying just moments ago, after viewing the video, that they were fascinated by black holes, the students who were exposed to the fixed theory of interests said they were no longer interested in black holes after reading the difficult Science article. In other words, when you’re told that your interests are somehow ingrained, you give up on new interests as soon as the going gets tough.
…K. Ann Renninger, a professor at Swarthmore College who was not involved with the study, has researched the development of interests and said that “neuroscience has confirmed that interests can be supported to develop.” In other words, with the right help, most people can get interested in almost anything. Before the age of 8, she said, kids will try anything. Between the ages of 8 and 12, they start to compare themselves with others and become insecure if they’re not as good as their peers at something. That’s when educators have to start to find new ways to keep them interested in certain subjects.
Though the authors didn’t examine adults, they told me their findings could apply to an older population as well. For example, people’s interest in parenthood tends to escalate rapidly once they have a real, crying baby in their house. “You could not know the first thing about cancer, but if your mother gets cancer, you’re going to be an expert in it pretty darn quick,” O’Keefe said.