The 13 appendices in this publication accompany the full report, "Teacher Preparation Experiences and Early Teaching Effectiveness. NCEE 2019-4007" (ED598664). They include: (1) Teacher Survey Response Rates by District/State; (2) Comparison of the Subsample Used for Relational Analyses and the Full Sample; (3) Development of the Teacher Survey; (4) Teacher Survey Questions on Preparation Experiences; (5) Measures of Preparation Experiences; (6) Teachers' Assessment of the Usefulness of Preparation Experiences; (7) Factor Analysis Methodology; (8) Assessing Measurement Error in Teacher Survey Responses; (9) Value-Added Modeling Methodology; (10) Teachers' Preparation Experiences by Preparation Provider and Degree Program; (11) Robustness of Results to Alternative Statistical Models; (12) Subgroup Analyses of Relational Findings; and (13) Relationships between Preparation Experiences and Effectiveness by Year of Teaching.