Most people who suffer psychological problems become worse without therapy.

If the question is trying to ask whether it is true or false, the statement above would be false. It is because people who have psychological problems could become worse without therapy depending on the illness they exhibit, if the person who has a psychological problem where in he or she could deal with it with his or her own without therapy then it wouldn't get worse. That is why the answer is false because it still depends on the situation.