Final answer:
Experimenter bias refers to the possibility that a researcher's expectations might skew the results of a study. To minimize this bias, a single-blind study can be conducted where the participants are unaware of their group assignment.
Step-by-step explanation:
Experimenter bias refers to the possibility that a researcher's expectations might skew the results of a study. It occurs when the observers' knowledge of which participant is in which group influences how they interpret the data. One strategy to minimize experimenter bias is to conduct a single-blind study, where the participants are unaware of their group assignment, while the researcher knows.