Question

skepticism
a logical explanation of an observation based on prior knowledge and experience
factor being tested in an experiment that is changed by investigator; labeled on the x-axis
observations that describe numbers and measurements
feeling of doubt

Explanation:

To determine which box defines "Skepticism", we analyze each option:

• Red box: Defines a hypothesis (logical explanation of observation).
• Orange box: Defines independent variable (factor changed by investigator).
• Green box: Defines quantitative observation (describes numbers/measurements).
• Blue box: "Feeling of doubt" matches the definition of skepticism (a stance of doubt towards claims/knowledge).

Answer:

The blue box (with text "feeling of doubt")