有这样一个心理学试验：美国哈佛大学心理学教授罗森塔尔到一个班中，很随意地指着几名学生，用十分肯定的口吻说他们很聪明。结果过了一段时间，这几名学生的成绩果然大大提高。这就是著名的罗森塔尔效应。罗森塔尔效应向人们反映了这样一种心理现象，即一个人若被他人寄以诚 There is such a psychological test: Rosenthal, a professor of psychology at Harvard University in the United States, went to a class very casually at a few students and said in a very positive tone that they are very clever. After a period of time, the scores of these students really improved greatly. This is the famous Rosenthal effect. Rosenthal effect to people reflect the psychological phenomenon, that if a person to be sincere by others