Rationale. 1-2-3 Magic was chosen as the ideal treatment option for the following reasons: evidence based, simplicity of the program, option for self instruction after treatment was discontinued. In addition, the treatment seem to align with the goals set with the client. It also was a treatment option which did not require extensive training. Taking into consideration the time frame discussed with the client, a program which had positive outcomes in a short period of time was also a strong reason for chosing 1-2-3