What Name Is Given to the Phenomenon in Which Subjects

question 21

Multiple Choice

What name is given to the phenomenon in which subjects' performances change because they recognize they are in an experimental treatment?

• A) Hawthorne effect
• B) Placebo effect
• C) Experimenter effect
• D) Treatment effect

---

Definitions:

Egocentrism

Piaget’s term for inability to consider another person’s point of view; a characteristic of young children’s thought.

Piaget

A Swiss psychologist known for his pioneering work in the study of child development and his theory of cognitive development stages.

Assessment

The systematic evaluation or measurement of a process, person's performance, or product, often used in educational and professional settings to determine proficiency or progress.

Egocentrism

A cognitive characteristic involving difficulty in seeing the world from perspectives other than one's own, typical of young children in the preoperational stage.