PSYB01H3 Chapter Notes - Chapter 9: Statistical Hypothesis Testing, Regression Analysis, Internal Validity
Document Summary
Single-subject designs (also known as single-case designs) give an alternative to group designs. The focus is on n = 1, a single subject. Small-n design and be used for 1-9 subjects. Useful for research on interventions in behaviour analysis and clinical practice. Small-n design: in-depth study of a single or relatively few subjects under tightly controlled experimental conditions in which the independent variable(s) is repeatedly manipulated over successive trials or conditions and in which the dependent variable(s) is repeatedly measured. Small-n and single-subject designs usually have four components: repeated measurement of the dependent variable, baseline phase, treatment phase(s) with all subjects exposed to each phase, graphic display, perhaps supplemented by statistical analysis. In ideal situation, measurements are taken before intervention then continuing through the intervention. Sometimes, measurements cannot be taken before the intervention. You may be able to collect data from client records or by asking about previous experiences.
