Experimenter: meaning, definitions and examples

Someone who conducts experiments, usually in a controlled environment like a laboratory. Often focuses on testing hypotheses.

• The experimenter carefully measured the reaction times of the participants
• She is an experimenter studying the effects of sleep deprivation on cognitive performance

Someone who conducts research, usually involving the systematic collection and analysis of data. This term is broad and can apply to various fields such as social sciences, industry, or academia.

• The researcher collected surveys from hundreds of participants
• She is a health researcher focusing on the impact of nutrition on chronic diseases

Someone who is extensively trained in the sciences and works to advance knowledge in their field through experiments, observations, and research.

• The scientist presented his findings at the international conference
• She is a marine scientist studying coral reef ecosystems

Someone who looks into details, facts, or situations, often to uncover the truth or gather information. This term is common in forensic, legal, or journalistic contexts.

• The investigator interviewed witnesses to solve the case
• He worked as a private investigator after retiring from the police force

Typically used in scientific or research settings where someone conducts experiments.

• The experimenter carefully documented the results of the test.
• As an experimenter, she spent hours in the lab.

Commonly used when referring to a professional who studies the mind and behavior, often working in mental health or academic settings.

• The psychologist helped the patient manage their anxiety.
• She decided to consult a psychologist about her recurring nightmares.

Used in contexts where someone tests the functionality or quality of a product, often in technology or quality control sectors.

• The software tester found several bugs in the new application.
• A product tester ensures that the items meet safety standards.

Used in contexts where someone assesses or judges the value, quality, or performance of something or someone.

• The evaluator provided feedback on the project's success.
• An independent evaluator was hired to review the program.