Elaine Is Interpreting Her Data and Realizes That the Amount

Multiple Choice

Elaine is interpreting her data and realizes that the amount of time she spent at one of the schools is substantially smaller and that she has very little data from that site. She believes it is because she did not 'click' with the principal of one of the five schools she is studying and therefore that school is not well represented in her data.
-Elaine is potentially experiencing an example of

A) response bias.
B) observer bias.
C) observer effect.
D) negative case effect.