1. One-way design: manipulating only one independent variable 2. Factorial design: manipulating two or more independent variablesDescribing the size and structure of factorial designs: 2 × 2 factorial design: 2 IVs; 2 levels for each 3 × 3 factorial design: 2 IVs; 3 levels for each 2 × 2 × 4 factorial design: 3 IVs;Continue reading “Class #18: More on Experimental Design”