Evidence typically used in various disciplines

• Passages of text or lines of a poem
• Details from an image or a work of art
• Passages of a musical composition
• Essays that analyze original works or put forth theories

• Firsthand sources such as photographs, letters, maps, and government documents
• Scholarly books and articles that interpret evidence

• Data from original experiments
• Results of field research such as interviews, observations, or surveys
• Statistics from government agencies
• Scholarly books and articles that interpret data from original experiments and from other researchers’ studies

• Data from original experiments
• Scholarly articles that report findings from experiments