Began study 1 methods
Added beginning of analysis to study 1
Added hierarchical regression to study 1
Fixed proposed regression equations' dummy coding
Removed studies 1 and 4 as per EJ's request
Revert "Removed studies 1 and 4 as per EJ's request"

This reverts commit 39fc8e88c8072a01fab4a54b14b1e500fb584033.
In the process of removing Studies 1 and 4
Removed studies 1 and 4