beat
Member
Can't ignore teacher bias. http://www.slate.com/blogs/xx_facto...inds_teachers_grade_boys_more_generously.html
(emphasis added)Beginning in 2002, the researchers studied three groups of Israeli students from sixth grade through the end of high school. The students were given two exams, one graded by outsiders who did not know their identities and another by teachers who knew their names.
In math, the girls outscored the boys in the exam graded anonymously, but the boys outscored the girls when graded by teachers who knew their names. The effect was not the same for tests on other subjects, like English and Hebrew. The researchers concluded that in math and science, the teachers overestimated the boys' abilities and underestimated the girls', and that this had long-term effects on students' attitudes toward the subjects.
As University of Minnesota-Morris, biology professor PZ Myers said in his Science Blogs response to the study that these findings are particularly remarkable because math is supposed to be one of "those incredibly objective disciplines in which questions all have a right answer and a best method." But according to this study, teacher expectations can have a strong hand in guiding how even math scores are assessed.
The reason this matters is that there's a large body of research showing that teacher expectations can dramatically influence whether a student shows "innate" talent. In a 1966 paper, researchers Robert Rosenthal and Lenore Jacobson chose 20 percent of students, at random, and told their teachers that the students had performed remarkably well on a "test for intellectual blooming." The belief that the kids were gifted, it turns out, made it so, as the kids randomly labeled that way showed greater gains on IQ tests than the kids that the teachers believed were just average.
That dynamic has been dubbed the "Pygmalion effect," and it's shown up in study after study: Just by believing that a student has an aptitude for something, the teacher makes it more likely to be true. So it matters quite a bit that teachers have unconscious beliefs that boys are better at math than girls, and we may be seeing the results in the many girls who might otherwise enjoy math getting discouraged and dropping out.