Research on school-based curriculum decision-making (SBCD) in Australia involved a national survey of 586 educators in 98 secondary schools and an ethnographic study of a Sydney (Australia) high school. The results are presented in 9 chapters and 67 tables. The study focused on what decisions are made in Australian schools about years 7-10 curricula, who makes the decisions and how they are made, and what factors influence the decision-making. An introductory chapter gives the study's background, while chapter 2 reviews the literature on SBCD and curriculum theory and decision-making. Chapter 3 describes the research methodology--including the survey's sampling methods, populations (principals, department heads, and teachers), variables, and statistical analyses--and discusses the ethnographic methods used. Chapters 4-7 present the survey and ethnographic results, covering (1) curriculum decisions made, involving school objectives, teaching methods, evaluations, curriculum changes, and students' perceptions; (2) decision-making participants and processes; (3) internal and external factors influencing decision-making; and (4) respondent perceptions on curricula, autonomy, and ideals. The "consultancy" or feedback provided to the high school examined in the ethnographic study is described in chapter 8. Chapter 9 summarizes the research project's findings and recommendations. (RW)