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HomeHomework Helpresearch-methodologyDouble Blind Procedure

Double Blind Procedure

A double-blind procedure is a research design in which both the participants and the experimenters are unaware of which participants are receiving the treatment or the placebo. This method reduces bias and increases the validity of the results by minimizing the influence of expectations on both sides.

intermediate
2 hours
Research Methodology
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Overview

The double blind procedure is a crucial method in research that helps to eliminate bias, ensuring that the results are valid and reliable. By keeping both participants and researchers unaware of who receives the treatment, this method minimizes the influence of expectations on outcomes. It is widely...

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Key Terms

Bias
A systematic error that affects the results of a study.

Example: If researchers favor one outcome over another, it can lead to biased results.

Randomization
The process of randomly assigning participants to different groups.

Example: Participants in a clinical trial are randomly assigned to either the treatment or control group.

Placebo
An inactive substance or treatment used as a control in experiments.

Example: Participants receiving a sugar pill instead of the actual medication are in the placebo group.

Experimental Design
The plan for how a study will be conducted, including how participants are assigned.

Example: A well-structured experimental design minimizes bias and maximizes reliability.

Control Group
A group of participants that does not receive the treatment being tested.

Example: The control group in a drug trial receives a placebo.

Treatment Group
The group of participants that receives the treatment being tested.

Example: The treatment group in a study receives the new medication.

Related Topics

Clinical Trials
Studies that test new medical treatments on human participants to evaluate their effectiveness and safety.
advanced
Research Ethics
The principles that guide researchers to conduct studies responsibly and ethically.
intermediate
Statistical Analysis
The process of collecting and analyzing data to draw conclusions from research findings.
intermediate

Key Concepts

Bias eliminationRandomizationPlacebo effectExperimental design