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
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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.