Given below are two statements:

Statement I: The double blind procedure is an effective solution to the issue of experimenter bias in research.

Statement II: The problem of experimenter bias can also be solved by non-verbal cuing of the participants.

In light of the above statements, choose the correct answer from the options given below:

The correct answer is Statement I is true but Statement II is false. 
Key Points

Statement I: "The double blind procedure is an effective solution to the issue of experimenter bias in research."

• This statement is true.
• In a double-blind study, neither the participants nor the researchers know who is in the control group and who is in the experimental group.
• This helps to eliminate both participant and experimenter bias. Participant bias might occur if individuals alter their behavior due to their awareness of being observed or knowing the experiment's purpose.
• Experimenter bias can happen when researchers unconsciously influence participants or interpret results based on their expectations or hypotheses.

Statement II: "The problem of experimenter bias can also be solved by non-verbal cuing of the participants."

• This statement is false.
• Non-verbal cuing from the researcher can actually contribute to experimenter bias rather than solve it.
• Experimenter bias refers to the researcher unintentionally affecting the results of a study due to their expectations or beliefs.
• Non-verbal cues, such as body language, facial expressions, or gestures, can subtly influence participants' behavior or responses, thus skewing the results.
• This phenomenon is sometimes referred to as the "Clever Hans effect," after a horse that appeared to respond to complex questions but was actually reacting to unintentional cues from its trainer