Dr Hallen Does Research in Which She Measures the Reaction

question 30

Multiple Choice

Dr. Hallen does research in which she measures the reaction times of her subjects. What is she studying?

• A) attention span
• B) selectivity
• C) psychomotor speed
• D) implicit memory

---

Definitions:

Single-blind Study

A study design where the participants do not know which group (experimental or control) they are in to prevent bias, but the researchers do.

Descriptive Research

A research method aimed at describing characteristics of a population or phenomenon being studied without influencing those characteristics.

Representative Sample

A smaller group taken from a larger population that truly represents all members of that population.

Scientific American

A popular science magazine that features articles on various scientific topics for a general audience.