Rosenthal effect is a kind of social psychological effect, which refers to the phenomenon that teachers earnestly hope students can get the expected effect dramatically.

1, Rosenthal and others studied the influence of teachers' expectations on students.

They made a so-called learning potential test for primary school students. Then, they randomly selected several students from each class, deliberately told the teacher that they were the most promising students in the class, and asked the teacher to pay attention to long-term observation, but not to tell the students themselves. Eight months later, I found that these students' academic performance and intelligence really improved faster than other students.

3. Obviously, the teacher's expectation of students caused by the false information provided by the experimenter has a predictive effect. In other words, teachers' expectations are conveyed to students explicitly or implicitly, and students will shape their behavior in the direction of teachers' expectations.