What basic, post graduate textbook on research methods (including qualitative and mixed methods equally) do you recommend? I am tasked with writing a research program for a new masters class for our psychology department. However, the powers that be wish this to be used as a general class and shared with the business folks. The current class is only business, and their textbook is clearly geared toward research within and for the benefit of businesses. I'm looking for alternatives which would work better for both business and psychology. Thoughts? TY!