Which type of psychologist is most interested in improving communication between people and machines?

A) psychometrician
B) environmental psychologist
C) forensic psychologist
D) ergonomist

Ergonomists are psychologists who study the interaction between people and machines, specifically in designing systems and products that are user-friendly and efficient. Improving communication between people and machines falls within their area of expertise. Psychometricians focus on measuring psychological traits, abilities, and attitudes, while environmental psychologists specialize in the relationship between people and their physical environment. Forensic psychologists use their knowledge of psychology in legal contexts, such as criminal cases or custody battles.