The question of whether creativity is content general or content specific is one of the most controversial issues in contemporary creativity research. Recent studies provide support for both positions, but the results of these investigations may be influenced by several factors, including the presence of a method effect (i.e., psychometric vs. alternative assessment). This study investigates the method effect by analyzing quantity (psychometric) and quality (alternative assessment) of creative achievement simultaneously using structural equation modeling. Results provide evidence for the method effect hypothesis. (Contains 1 figure and 2 tables.)