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:

Immune System

The complex network of cells, tissues, and organs that work together to defend the body against attacks by foreign invaders, such as viruses and bacteria.

Psychopathology

An alternate term for mental disorder.

Personality Disorder

A type of mental disorder characterized by enduring maladaptive patterns of behavior, cognition, and inner experience, deviating from the individual's culture.

Character Flaw

A trait or aspect of one's personality that is seen as negative or undesirable, often leading to challenges or conflict.