Hedrick, T. E., Bickman, L., & Rog, D. J. (1993). Applied research design: A practical guide. Sage Publications, Inc. Review previously assigned readings as needed.
Ellis, T., & Levy, Y. (2008). Framework of problem-based research: A guide for novice researchers on the development of a research-worthy problem. Informing Science, 11, 17-33.
This NU resource will provide you with additional help in creating your problem and purpose statements as well as guide you in writing appropriate research questions.