In single case design, what is another term for Experimental Control?

In the context of single case design, Experimental Control is often represented by the term Functional Relation. This concept refers to the demonstration that a change in the independent variable (the intervention or treatment) results in a consistent change in the dependent variable (the behavior being measured). Establishing a functional relation is a key aspect of experimental control, as it allows researchers to draw conclusions about the causal relationship between variables.

Achieving experimental control involves carefully designing the study so that any observed effects can be directly attributed to the intervention rather than to extraneous variables. This involves the systematic manipulation of the independent variable and rigorous data collection during various phases of the study (such as baseline, intervention, and follow-up). By demonstrating a functional relation, researchers provide evidence that the intervention is effective, which is the primary goal of experimental design in applied behavior analysis.

Other options do not capture the essence of experimental control in the same way. For instance, internal validity pertains to the degree to which the results of the study can be attributed to the independent variable rather than other influences, but it does not specifically refer to the relationship being assessed between the variables.