被験者

1. Origins, structure, and basic meaning

• Structure: 被験者 is read ひけんしゃ.
• Basic usage: It refers to a research participant or test subject taking part in a study or experiment.

2. Common pitfalls and similar expressions

• Briefing procedure
  • 被験者への説明: explaining the procedure to research participants.
• Confirming consent
  • 被験者の同意: the participant's consent checked before an experiment.