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
b
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Which of the following is a strictly informational social influence explanation for group polarization?
a. social comparison theory b. self- perception theory c. persuasive arguments theory d. affective comparison theory
Identify the correct sequence of prenatal diagnostic tests from earliest to latest availability during pregnancy
a. Ultrasound :: chorionic villus sampling :: amniocentesis b. Amniocentesis :: ultrasound :: chorionic villus sampling c. Ultrasound :: amniocentesis :: chorionic villus sampling d. Chorionic villus sampling :: amniocentesis :: ultrasound