Measurement, testing, and assessment are important for evaluating student learning and improving instruction. There are many types of assessments that serve different purposes. Formative assessments like quizzes and pre-tests are used during instruction to provide feedback and guide teaching (assessment for learning), while summative assessments like final exams are given after instruction to evaluate learning (assessment of learning). Authentic assessments that require real-world tasks are more effective than traditional assessments at demonstrating meaningful application of skills. Proper assessment benefits students, teachers, administrators, parents and policymakers by informing instruction, evaluating programs, and making placement decisions.