Keisha Performs an Experiment with Two Randomly Assigned Groups of School

question 49

Multiple Choice

Keisha performs an experiment with two randomly assigned groups of school children. The first group is allowed 15 minutes of recess play before a math test, while the second group watches a video before the test. When she analyzes the test scores, she finds that there is a statistical difference between the groups, with the recess group scoring higher on average. Which conclusions can be drawn from this result?

• A) The difference between the scores for the two groups is probably due to random chance.
• B) The difference between the scores for the two groups is likely due to their differing pretest activities, and did not happen by chance.
• C) Students who are good at math prefer recess to watching a video.
• D) Students who are good at math prefer watching a video to recess.

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Definitions:

Patient Expectations

The beliefs or anticipations patients have about the care they will receive, the outcomes of their treatments, and their overall health improvements.

Wound Healing

The natural process by which the body repairs and regenerates skin and tissue damage.

Priority Action

The most important or urgent task that needs to be performed first in a sequence of actions, especially in critical situations.

Open Wound

A breach in the skin or a disruption of the normal structure and function of the skin.