A College Student Has Volunteered to Tutor Students in a First-Grade

Multiple Choice

A college student has volunteered to tutor students in a first-grade classroom.She hopes to gain a realistic picture of the everyday behavior of these students.However,every time she enters the classroom,the students all stop what they are doing and run up to her begging her to tutor them next.This student will probably never get a realistic picture of a typical first grader's school day because of the

A) observer bias.
B) observer effect.
C) self-fulfilling prophecy.
D) anthropomorphic error.