These are the appendixes for the report, "Teacher Shortages in New York State: New Teachers' Certification Pathways, Shortage Areas, District of Employment, and Retention in the Same District." New York State has been experiencing teacher shortages in specific subject areas. One way to address these shortages is through the certification and placement of new teachers. The study explored the pathways through which new teachers between 2015/16 and 2017/18 earned certificates, their certification areas, and their subsequent placement and retention in districts across the state, particularly high-need districts. This document presents the following three appendixes that accompany the study: (1) Methods; (2) Supporting analyses; and (3) Other analyses. [For the full report, see ED615881. For the Study Snapshot, see ED615882. For the Study Brief, see ED615883.]