Which technique is more effective for reducing observer bias than for reducing random observer error?
A) using instruments
B) using multiple-choice tests
C) making raters blind
D) training raters

Question

Quizplus · Accepted Answer

Making raters blind is more effective for reducing observer bias because it prevents raters from being influenced by their expectations or knowledge about the subjects or conditions being observed.

Which Technique Is More Effective for Reducing Observer Bias Than