In the study, cited in the text, of the relationship between the amount of time a teacher spends smiling and the achievement level of the students, it was shown that
A) the less time a teacher smiles, the better the students do on an achievement test
B) the more time a teacher smiles, the better the students do on an achievement test
C) the time a teacher spends smiling is independent of student achievement
D) a smiling teacher causes a student to get better grades

Question

Quizplus · Accepted Answer

The study showed that there is a positive correlation between the amount of time a teacher spends smiling and the achievement level of the students. This means that as the amount of time a teacher smiles increases, the students' achievement level also tends to increase. Therefore, choice B is the correct answer.

In the Study, Cited in the Text, of the Relationship