Question

question 45
researchers are conducting a study where they have concerns that the participants beliefs and/or the experimenters beliefs may skew the results. therefore, they chose to conduct a ______ study
options:

• double - blind
• control
• double - control
• single - blind

Explanation:

In a double - blind study, neither the participants nor the experimenters know which group (e.g., treatment or control) the participants are in. This helps to eliminate bias from both the participants' beliefs (like the placebo effect) and the experimenter's beliefs (like unintentional influence on participants or data interpretation). A control study is mainly about having a group for comparison, a double - control study is not a standard term in this context, and a single - blind study only blinds the participants, not the experimenters. So the correct option is the one with double - blind.

Answer:

A. double - blind