11-3)

Scientific experiments should be designed to show that your hypothesis is wrong, and should be conducted completely objectively with no possible influence on the outcome. Unfortunately few, if any, scientists are truly objective. They have often decided long before the experiment is begun what they wold like the result to be. This means that very often bias is (unintentionally) introduced into the experiment, the experimental procedure or the interpretation of results. It is all too easy to justify to yourself why an experiment which does not fit with your expectations should be ignored, and why one which provides the results you 'hoped for' is the right one. This can be partly avoided by conducting experiments '___________' and by asking others to check your data or repeat experiments.

1. approved

2. blinded

3. deceived

4. informed

5. isolated

문제 이상하다 이기야