[4] When reporting on findings obtained through single-subject designs, specific guidelines are used for standardization and to ensure completeness and transparency:[5] Reversal design involves repeated measurement of behaviour in a given setting during three consecutive phases (ABA)- baseline, intervention, and return to baseline.
[1] Changing criterion designs are used to evaluate the effects of an IV on the gradual improvement of a behavior already in the participant's repertoire.
If there is a clear distinction between baseline and intervention, and then the data returns to the same trends/level during reversal, a functional relation between the variables is inferred.
[7][8] Features assessed during visual analysis include:[9] Research designs are traditionally preplanned so that most of the details about to whom and when the intervention will be introduced are decided prior to the beginning of the study.
[10] In addition, there are no widely agreed-upon rules for altering phases, so conflicting ideas could emerge as to how a research experiment should be conducted in single-subject design.