Single-subject

Single-subject may refer to:


 * Single-subject design, a research design in which the subject serves as his/her own control
 * Single-subject dictionary, a specialized dictionary that has been designed and compiled to cover the terms of one particular subject field
 * Single-subject literature, a work of writing upon a single subject
 * Single-subject research, a group of research methods that are used extensively in the experimental analysis of behavior and applied behavior analysis
 * Single-subject rule, a section present in many state constitutions within the United States of America