Small-N designs and Solving problems (control issues). Within Subjects Designs (Small N) N stands for the number of subjects in an experiment The designs we have discussed in the course so far have had many participants per group
ABABA differences will be eliminated as a source of error variance
AB1 AB2 AB3 A
experimentally sound and ethical
mentally impaired 8-year old girl
soft cloth over face
self injurious behavior
Vanbieauliet, Spangler, and Marshall (1981)
family style meals and communication in instututionalized adults
useful when limited # of subjects
Helpful, because can leave patient in a treated state ABAB
External Generalizability can be an issue.
worked for this patient, but would it work for other patients.