What should the information provided during informed consent avoid to ensure understanding?

• A. Avoid using simple language.
• B. Avoid unnecessary complexity.
• C. Avoid stating the trial's risks.
• D. Avoid explaining the rights of participants.

Answer: (B)

Clear communication is essential in informed consent. To ensure understanding, information should be presented in plain, straightforward language and avoid unnecessary complexity. When material uses long, dense sentences, medical jargon, or heavy statistics without explanation, it becomes hard for someone to grasp what they are agreeing to. The goal is to make the trial’s purpose, procedures, risks, benefits, and alternatives understandable, while still providing all essential information. Techniques like using plain language, defining terms, and checking understanding (for example, asking the participant to explain back in their own words) help achieve this.

Choosing to avoid unnecessary complexity means prioritizing clarity over verbosity. It’s not about dumbing down the information or omitting important details like risks and participant rights; those must be explained clearly. By contrast, making the text more complex would hinder comprehension, which is exactly what informed consent seeks to prevent.