Standardized tests are designed and administered in a consistent manner. They are based on content standards that outline what students should know at each grade level. The development of standardized tests is a rigorous multi-step process that includes adopting content standards, developing test items, field testing items on students, building the final test using field-tested items, and setting performance standards to define proficiency levels. This process aims to create fair assessments that reliably measure student knowledge and identify areas where students are struggling or excelling.