【WPMの測定手順】
1. 読む前に設問を確認する
2. 時計(ストップウォッチ)を見ながら、英文を最初から最後まで読み、かかった秒数を記録する
3. 設問に解答する
4. 答え合わせをして正解数を確認する
以下の計算式でWPMを算出する
WPM = 語数 ÷ 読むのにかかった秒数 × 60 × 正解数 ÷ 設問数
※読んだ内容の理解を測定せずただ英文を読むスピードをチェックしたい場合は、WPM = 語数 ÷ 読むのにかかった秒数 × 60 まででOK。
Why AI in Medicine Needs to Learn to Say “No”
Artificial intelligence (AI) is being used more and more in the medical world. Doctors, hospitals, and even patients use AI to help with diagnosing diseases, recommending treatments, and answering health questions. However, there is a big problem: AI systems often have trouble saying “no” when they do not know an answer.
In the past, doctors were trained to say, “I don’t know,” when they were unsure. This is important because giving the wrong answer can be dangerous. But many AI bots, such as ChatGPT and other medical chatbots, are designed to always give an answer, even if they are not certain. This can lead to wrong or even harmful information.
For example, if a patient asks an AI chatbot about a strange symptom, the AI might guess and give a diagnosis. If the AI is wrong, the patient might worry too much or not seek real medical help. Experts say it is safer for AI to admit when it does not know the answer.
Some scientists and engineers are now working on making AI that can say, “I’m not sure,” or, “You should talk to a real doctor.” This would make AI much safer and more trustworthy in the future. In conclusion, as AI becomes more common in medicine, teaching it to say “no” when necessary is very important for everyone’s safety. (232 words)
☆Answer the questions☆ (2×4=8)
(1) What is the main problem with medical AI according to the article?
a) It’s too expensive
b) It always gives an answer, even when unsure
c) It works too slowly
d) It only works with doctors
(2) Why is it dangerous if AI cannot say “I don’t know”?
a) It can give wrong or harmful information
b) It can save lives
c) It never makes mistakes
d) It helps doctors
(3) What are some experts trying to change in AI design?
a) Make it faster
b) Teach it to always give an answer
c) Teach it to say, “I’m not sure”
d) Make it more expensive
(4) What should patients do if they are not sure about AI’s answer?
a) Do nothing
b) Always believe the AI
c) Talk to a real doctor
d) Ask a friend

【Answer】