While standardized test scores are a commonly used indicator, they are limited and shouldn't be the sole measure. A more holistic view of student outcomes would include:
* Academic achievement: This goes beyond test scores to include critical thinking, problem-solving skills, creativity, and the ability to apply knowledge in real-world situations. Growth over time is more important than a single snapshot.
* Social-emotional learning: This encompasses skills like self-awareness, self-management, social awareness, relationship skills, and responsible decision-making. These skills are crucial for success in life beyond academics.
* College and career readiness: Are students prepared for the next stage of their lives, whether that's further education or entering the workforce? This includes things like possessing necessary skills, having access to resources and guidance, and a strong sense of self-efficacy.
* Equity and inclusion: Does the school provide a supportive and equitable learning environment for all students, regardless of their background, race, gender, or ability? Closing achievement gaps is a key indicator of quality.
Ultimately, the "most important" indicator depends on the perspective and goals. However, focusing on a broad measure of student success – encompassing academic, social-emotional, and future readiness in an equitable environment – provides a more complete and meaningful picture of quality school education than any single metric.