Dr. Francis H. Rauscher demonstrated the connection between music and learning experimentally in 1993. Appreciation of music can improve IQ and thus promote learning, a phenomenon known as the Mozak phenomenon. Which of the following, if true, can weaken the above view? ['The perseverance required to learn music is the personality traits required in any study.', "Music has a greater impact on a person's character than IQ.", 'Music research experts are no better than experts in other fields.', "The short-term improvement in IQ after listening to Mozart's work did not last until the end of the experiment."]