Hi Florence
For writing scope of study, you need to be clear at narrow level what are the boundaries for your study, now it could be population based, geography based and concept based. For example – A study need to be done for examining consumer perception on social media marketing effectiveness, now I can restrict my geographical scope by mentioning my study would solely be based on reviewing perception of Indian consumers and that too for the consumers living in Delhi NCR region. This restriction of scope is geographical.