ABA Designs How many different experimental manipulations did Jones and Friman (1999) incorporate in their A-B-BC-A-BC study of insect phobia?

Question

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Jones and Friman (1999) incorporated two different experimental manipulations in their study. The A-B-BC-A-BC design indicates an initial baseline (A), followed by a first intervention (B), then a second intervention added to the first (BC), a return to the first intervention (A), and finally, the combined interventions again (BC). This outlines two distinct manipulations: the first intervention (B) and the second intervention added to the first (BC).

ABA Designs How Many Different Experimental Manipulations Did Jones and Friman