Which type of study would control for participant expectations, but not expectations on the part of the investigator?

Question

Quizplus · Accepted Answer

A single-blind study controls for participant expectations by keeping them unaware of which group they are in (e.g. experimental group or control group), but it does not control for expectations on the part of the investigator. Only a double-blind study controls for both participant and investigator expectations by keeping both unaware of which group participants are in. A total-blind study does not exist as a commonly used term in research. A partial-blind study is also not a commonly used term and is not a recognized study design.

Which Type of Study Would Control for Participant Expectations, but Not