Respected Madam or Sir,
I am seeking for guidance with regards to writing PhD proposal. I am decided with the topic. However, I need help with regards to how extensive the framework should be in a PhD proposal?
For instance, instead of using one mediator in a mediation model, should I use multiple mediators? That would turn the 'simple mediation model' into 'multiple mediation model'. At the level of a PhD, does such a model helps? Or shall I further add multiple independent variables to make model more extensive that would in turn increase the number of arrows in a framework?
Any insight from seniors and experts would be highly appreciated!
Thank you!