Teachers in One Study Were Told to Watch Normal Elementary

Multiple Choice

Teachers in one study were told to watch normal elementary school children who had been randomly labeled for the study as "learning disabled," "intellectually disabled," "emotionally disturbed," or "normal." Sadly, the teachers gave the children very different ratings, depending on the labels used. This illustrates the serious consequences of

A) conducting a scientific survey.
B) conducting a case study.
C) observer bias.
D) the observer effect.