👉 In the field of psychology, an experimenter is a person who carries out a controlled and randomized experiment to study the effects of variables on outcomes. The primary objective of an experimenter is to collect data from participants or animals that can be analyzed for correlation or causation between observed results and expected ones. Experimenter's role involves: 1.

Selection

: Selecting participants who are suitable for the study, taking into account their age, gender, intelligence level, and any other

experimentator