Struggling with Level 7 & Mgt Research Report

Hi, 

I'm all very new to this! 

I'm currently in the second year of my L7 HRM Diploma, and am struggling with my Management Research Report question. I have identified fairly broad topics and have had to revisit my subject area once already. I've currently refined this to two options: an analysis of the relationship between reward and retention (although I think this may be too broad) or looking at the effects/influences of E-Learning in L&D (something I know less about but it is a more concise) - I have thought about potentially exploring generational differences with this one....... 

Having always struggled with research where I set my own question (it almost cost me my A-Level history and my Master's degree....) I'm very concerned about it costing me my CIPD.

Just wondered if anyone had any good pointers for support or help?

Much appreciated!