Understanding Types of Assessment
Assessment plays a central role in effective teaching and learning. Rather than serving only as a measure of performance, assessment is an ongoing process used to understand what students know, understand, and are able to do. When thoughtfully designed, assessments provide valuable information that guides instruction, supports student growth, and ensures learning outcomes are being met.
Effective courses use a variety of assessment types, each serving a distinct purpose in the learning process. The three primary types of assessment are diagnostic, formative, and summative. Together, these assessments create a coherent system that supports learning from the beginning of a course through its conclusion.
To illustrate the importance of varied assessments, we can use an athletic training analogy. A coach begins with a diagnostic assessment by recording an athlete’s initial race time and identifying strengths and weaknesses. Throughout the season, formative assessments occur as the athlete trains and competes, with the coach adjusting strategies based on ongoing performance data. Finally, a summative assessment takes place at the end-of-season race, where improvement is evaluated, and rankings are determined. This analogy highlights how relying only on summative assessments limits students’ opportunities for growth and improvement.
Diagnostic Assessment
Diagnostic assessments are used at the start of a course, unit, or learning activity to understand students’ prior knowledge, skills, and experiences. These assessments help instructors identify strengths, gaps, and misconceptions before instruction begins. Diagnostic assessments are typically low‑stakes and are not used for grading. Instead, they inform instructional planning, pacing, and support strategies, allowing faculty to meet students where they are and build on existing knowledge.
Examples of diagnostic assessments include pre‑tests, introductory writing prompts, surveys, or short skill checks.
Formative Assessment
Formative assessments are used throughout the learning process to monitor student progress and provide ongoing feedback. These assessments are essential for supporting learning, as they allow both students and instructors to assess understanding before moving forward. Formative assessments are often low‑stakes or ungraded and are used frequently to guide instruction, clarify misunderstandings, and help students improve their performance.
Because formative assessments focus on learning rather than evaluation, they create opportunities for reflection, revision, and growth. Feedback is a critical component of formative assessment, as timely and targeted feedback helps students understand what they are doing well and where improvements are needed.
Examples of formative assessments include quizzes, drafts, practice problems, discussions, reflections, peer review, or in‑class activities.
Summative Assessment
Summative assessments occur at the end of a course, unit, or major learning experience. These assessments evaluate student learning against defined learning outcomes and are typically used for grading. Summative assessments provide evidence of what students have learned and the extent to which they have met course or program expectations.
While summative assessments are important for evaluating achievement, they are most effective when they are supported by earlier diagnostic and formative assessments through scaffolding. Relying solely on summative assessment limits opportunities for learning and improvement.
Examples of summative assessments include final exams, projects, portfolios, presentations, or cumulative assignments.
Using Assessment Effectively
A balanced assessment strategy intentionally combines diagnostic, formative, and summative assessments. Formative assessments should be the most frequent, as they provide ongoing insight into learning and allow for timely instructional adjustments. Clear alignment between assessments and course learning outcomes is essential and making this alignment transparent helps students understand expectations and succeed.
When assessments are varied, aligned, and focused on meaningful learning, they enhance teaching effectiveness, support student success, and strengthen the overall learning experience.