Question

Experiment 4: A principal wants to determine if the

number of windows in the classroom affects students'
test scores.
identify the variables

Answer 1

See below.

Explanation:

The variables are:

• test scores
• number of windows
• direction windows are facing
• time of day
• ability of students
• other items in room (pinups, etc.)
• room temperature
• weather (e.g., are the students distracted by the tornado?)

The testing should be done in different classrooms that have differing numbers of windows. The tests must be the same, and the students must have the same capabilities.