What is another word for principal investigator?
Pronunciation: [pɹˈɪnsɪpə͡l ɪnvˈɛstɪɡˌe͡ɪtə] (IPA) 
Principal investigator is a common term used in research and scientific studies, but there are numerous synonyms that can be used in place of this phrase. These include lead investigator, primary investigator, research director, project head, research leader, and head researcher. While these terms may differ slightly in their emphasis, all are used to describe the individual with the highest level of responsibility and authority within a research team. The role of the principal investigator is crucial in guiding the direction of a study, ensuring ethical standards are upheld, and overseeing the work of other researchers involved in the project.
