In a single case design, the participant serves as their own control group for comparison

Which factor contributed most to the development of common law?

a. a synthesis of Roman law and natural law b. a steady rise in disputes between private parties c. the lack of power courts had in relation to legislatures d. the absence of formal rules that applied to most court cases

______ are tools that help researchers measure something.

A. Modules B. Instruments C. Elements D. Dialogues