Hello. I’m in the process of conducting some preliminary research to assess the impact of a program around various schools in the district. My committee has recommended the use of Hierarchical Linear Modeling (Raudenbush and Bryk (2002) but I am having trouble on recommendations for sample sizes, particularly for Level 1 and Level 2 units. Are there guidelines (or a software implementation like G-Power) to address this kind of situations?
It’s an important research project because a grant will come attached to it so I am trying my best to make sure I have my basics covered and statistics has never been my strongest suit.
Thank you!