mdcat logical reasoning MCQ #225

A study claims caffeine improves memory. It was tested on 10 volunteers. What flaw exists?

mdcat logical reasoning MCQ #225

  1. Question 1

    Q1. A study claims caffeine improves memory. It was tested on 10 volunteers. What flaw exists?

    • A) Small sample size.
    • B) Biased volunteers.
    • C) Lack of replication.
    • D) All of the above.

    Answer: Small sample size.

    Explanation: Sample size limits generalizability. Small sample size is correct because it matches what the question requires. USAT, HAT and MDCAT analytical sections repeat this pattern.