title: Single-subject research designs for optometry.
abstract: Single-subject research designs are used extensively in the fields of education and psychology. There are many advantages of these designs over traditional group designs and they appear particularly important for applied research in optometry. An overview of the basic designs is presented. For each type of design, examples are provided that illustrate the application of this methodology to applied optometric research.
mesh_terms: D005246:Feedback; D006801:Humans; D009907:Optometry / Q000379:methods*; D012107:Research Design; D014787:Vision Tests / Q000592:standards*