The word is “LOGIC SKILLS”
To construct an effective argument, one must have a firm understanding of logic skills. This includes identifying and analyzing arguments, recognizing common fallacies, and constructing valid and sound arguments. An effective argument requires a clear understanding of the principles of logic and how to apply them to construct a coherent argument that persuades the audience of one's point of view. Therefore, developing logical thinking skills and understanding logical concepts is essential for constructing a persuasive argument.