Formative vs summative assessment: key features and differences

The fundamental difference between formative and summative assessment lies in their purpose and the timing of their administration.

Formative assessment is a type of ongoing diagnostic assessment that monitors learning as it occurs, whereas summative assessment is a final evaluation of learning at the end of the instructional period.

In this article, you will find a detailed comparison of the two types of assessment, which will help you understand when and why to use them in your programs.

What is the difference between formative and summative assessment?

Formative assessment is a type of assessment that allows educators to monitor student progress during instruction in order to adjust teaching methods in real time.

In contrast, summative assessment evaluates learning itself—that is, mastery of a subject or the acquisition of skills at the end of a unit or course.

This highlights that the main difference lies in their function: formative assessment serves as a guide for continuous improvement, while summative assessment measures final outcomes. 

Purpose and timing: When each assessment takes place?

As we mentioned earlier, formative assessments are those that take place during the learning process, typically on an iterative basis. 

They allow us to verify that the student understands the material and facilitate any necessary adjustments to the teaching method, content, or monitoring to improve the student’s learning experience.

Summative assessments, on the other hand, are conducted at the end of a unit, a specific time period (such as at the end of a semester), or the entire course. They provide a summary of the student’s achievements in relation to established standards.

By structuring the assessment process based on this approach, students are able to develop skills progressively and validate their results at the end of the program.

Stakes and grading: Low-stakes vs. high-stakes assessment

If we focus on aspects such as risk and grades, formative assessments carry virtually no risk, since the priority is on providing feedback and supporting growth, without focusing on penalties.

In contrast, the risk in summative assessments is high, and they carry significant weight in the final grade, as they are linked to the certification of acquired knowledge and skills.

For this reason, one of the advantages of formative work is that it reduces anxiety about final exams by getting students accustomed to testing their performance and adapting to increasing difficulty.

Comparison table: Formative vs. summative assessment in 6 dimensions

The following table provides an overview of the key differences between formative and summative assessment in terms of their purpose, timing, importance, feedback, and use: 

Dimension	Formative assessment	Summative assessment
Purpose	To monitor learning throughout the process	To evaluate final outcomes
Timing	During instruction	At the end of the unit or course
Stakes	Little or no impact on the grade	Significant impact, with a major weighting in the grade
Feedback	Immediate and action-oriented. It is essential that it be personalized to maximize adjustments	Final and evaluative, typically aligned with curriculum standards
Who benefits	It allows teachers to adjust instruction.	Institutions can measure outcomes and even automate processes
Example	Exit survey, in-class quiz, polls, self-assessments, homework.	Final exam & essays, standardized test, National standardized tests, portfolios.

Key features of formative assessment

Formative assessment is not so much a test as a pedagogical approach that remains active throughout the entire teaching process.

You can understand it more clearly by looking at its key characteristics:

• It is ongoing. It takes place at various points throughout the unit.
• It is based on feedback. It provides students with useful information about their performance, how to overcome obstacles, etc.
• It is adaptive. These are assessments designed to ensure real-time adjustments based on what students demonstrate they know or what they have yet to grasp.
• Its impact is minimal. It carries little weight in the final grade, sometimes none at all. This helps reduce test anxiety and encourages genuine participation.
• It is process-oriented. It focuses on how learning unfolds and how to improve it.

All in all, this type of analysis gives students the opportunity to better understand their learning and offers teachers a clearer view of the effectiveness of their own teaching. For example, if most of the class answers a question incorrectly, it may be a sign that something in the methodology is not working properly.

Therein lies the core difference from summative assessment: in the feedback loop between teaching and learning, where the results of the latter can modify the strategy of the former.

Based on what has been discussed so far, you can better understand why this type of continuous monitoring has become one of the best tools for improving student outcomes and informing decision-making by teachers and institutions.

If you’d like to delve deeper into how to put these principles into practice, we encourage you to explore our article dedicated to formative assessment strategies, where we discuss key strategies based on the model by Wiliam and Thompson, as well as a series of resources to improve your methodology.

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Key features of summative assessment

The summative assessment approach focuses on “measuring the outcome” once instruction has concluded.

It is used at the end of a unit, course, or instructional period to evaluate how much a student has learned in relation to a defined benchmark.

To better understand it, we suggest integrating it into a broader framework: the three types of assessments commonly used by U.S. educators. Within this framework, each process serves a different purpose, but none replaces the other:

• Diagnostic assessment: identifies what students know before instruction begins.
• Formative assessment: monitors progress during instruction.
• Summative assessment: evaluates the final outcome when instruction ends.

By understanding these interconnected elements, it is easier to grasp the defining characteristics of summative assessment:

• They are outcome-oriented. They focus on the score, grade, or completed project, rather than on the process.
• They carry significant weight in the final grade. They generally represent a significant portion of the student’s overall academic record. They indicate that the student can continue their educational journey because they have acquired the necessary skills and knowledge.
• They are administered under standardized conditions. Thanks to this type of testing, comparisons can be made between students, institutions, regions, entire educational systems, etc.
• They produce a definitive judgment on what has been learned. They are designed as conclusive evidence of achievement at a specific point in time.
• They use the rubric as a tool for transformation. This assessment system allows for transparency because the student knows what is expected of them, and it provides objectivity and consistency, helping to eliminate the risk of bias in the analysis.

Reporting results or fostering learning? A key difference

The use of assessment rubrics reinforces the boundary between formative and summative assessment.

Formative feedback is designed to be useful at the moment it is provided. For example, if a student fails an activity, it offers them the chance to respond and learn before the unit ends.

In contrast, the summative assessment through a final exam is intended to mark the end of the course or term.

It is also true that you must keep in mind that in pedagogical innovation settings, these distinctions can become more flexible.

This is the case when a student submits an end-of-course project, but the teacher provides feedback to improve it, and the student must submit a revised version. In this scenario, what was initially a summative assessment becomes formative; the assessment ceases to be a verdict and becomes a new starting point.

Formative vs. summative assessment examples

The most common examples of assessments used in formative evaluation are exit tickets, ungraded quizzes, discussions, concept maps, or peer reviews.

As for summative evaluation, final exams, state-administered standardized tests, Advanced Placement (AP) exams, or end-of-course projects are typically used.

However, although the tools used can be a distinguishing factor between formative and summative assessment, this is not always the case. A test can be formative or summative depending on whether the results are used to record a final grade or to adjust the teaching methodology, content, or pace.

In the following sections, you will find some of the most characteristic examples of each type.

Formative assessment examples in the classroom

Formative assessment strategies should generate information that someone (teacher, student, or both) can act upon in real time.

These are some of the most common examples in elementary, secondary, and college classrooms in the U.S.:

• Exit tickets. At the end of each lesson or unit, the teacher poses a few questions on paper or via a digital tool. Based on students’ responses, before the next session, the teacher knows whether to move forward with the syllabus or revisit the topic.
• Think-Pair-Share. In this activity, students first reflect individually on a question, then discuss it with a partner, and finally share their arguments or conclusions with the class. It is a method for checking comprehension in real time, identifying potential obstacles or the need for clarification of concepts.
• Concept maps. These are graphical representations that visually connect ideas. Thanks to this technique, the teacher can access relevant information about students’ mental models or identify structural misunderstandings. It is ideal for subjects where relational thinking is more important than memorizing facts.
• Ungraded quizzes. This is a method of active recall that facilitates immediate feedback. The process of retrieving information, even when the answer is incorrect, enhances learning.
• Peer review. This involves students providing structured feedback on drafts, arguments, or projects. The benefit is twofold: the student receiving the feedback enriches their learning with perspectives different from their own, and the teacher can assess their students’ ability to develop skills such as critical thinking, active listening, or assertive communication.
• Classroom polls and digital tools. Quick polls, whether using digital tools or a show of hands, provide the teacher with a snapshot of the class’s overall level of understanding. The key here lies in selecting the right questions.

Examples of summative assessment in K-12 and higher education

Summative assessments vary by educational level as students progress:

• In high school, exams such as the SAT, ACT, and AP tests are summative. Their role is to assess learning against a national benchmark, and they directly influence college admissions processes and course credit recognition.
• In higher education, summative assessment utilizes tools such as final exams, research papers, term projects, capstone presentations, or comprehensive portfolios. Their weight in the Grade Point Average (GPA) is significant, and they provide official evidence of academic achievement that students can present to employers, graduate programs, or professional licensing boards.

In any case, as we mentioned earlier, the summative assessment materials used can serve as formative tools if they are reviewed, giving students the opportunity to correct or improve them before the final submission.

Formative vs. Summative Assessment in University Settings

In U.S. universities, summative assessments can account for up to 80% of the final grade, while formative assessments typically play a more modest role through discussions, conversations during tutoring sessions, or brief weekly quizzes.

Another distinguishing feature of this educational stage is that summative assessments are typically designed to certify professional readiness, in addition to academic competence.

Defending a doctoral dissertation or taking a medical licensing exam are summative assessments in the broadest sense of the term because they mark the end of a learning process and result in a valid credential in the professional sphere.

How instructors combine both assessment types in college courses

The success of a university program is typically based on a sequence that combines formative and summative assessment, designing low-stakes formative checkpoints throughout the semester that inform the high-stakes summative assessments at the midpoint and end of the course.

In this way, the formative layer performs a genuine diagnostic function regarding student progress.

Research on feedback, such as that conducted by Paul Black and Dylan Williams (2008), has shown that regular formative assessment yields better results than a single final assessment.

Why does this improvement occur? Because formative checkpoints help identify knowledge gaps before they become severe and reduce students’ cognitive load prior to the final exam.

Thus, combining both approaches is highly effective: formative assessment reduces anxiety surrounding high-stakes exams, while summative assessment provides official external validation through accrediting bodies such as the American Association of Colleges and Universities (AAC&U).

The integrity of summative assessment in online and hybrid learning environments

Summative assessments in distance learning deserve special attention. Consider that when high-stakes exams are administered remotely, universities are increasingly turning to tools that can ensure academic integrity. Only then do summative results reflect genuine individual achievement.

Tools such as automated remote proctoring, capable of authenticating students, monitoring computer activity throughout the exam, and detecting irregular behavior in real time, are essential.

Solutions such as Smowltech’s proctoring plans also allow for synchronous teacher intervention—not just reviewing the exam after it’s completed—while adhering to regulations regarding student privacy and data management. We encourage you to request afree demo so you can see firsthand how this innovative proctoring works.

Within this challenge, complexity increases as generative AI-assisted writing raises new questions about what written exams actually measure. Some institutions, such as Cornell University (an Ivy League member), are leading the return to oral exams to verify actual learning after the written document is submitted.

In this scenario, some educators discuss introducing formative logic into a summative process, so that the final product is evaluated but also validated.

Using formative and summative assessment together: balance and optimization

Current trends promote the balanced and complementary use of both types of assessment with the aim of achieving academic excellence.

A course based solely on a summative approach generates grades but rarely improves the process, while a purely formative course lacks a solid record of results.

Ultimately, success lies in a feedback loop model:

• Formative assessment generates data that helps adapt teaching.
• The process improves learning.
• Better learning produces better summative results.
• The final results reflect where the formative process fell short.

The question that may arise is when is the best time to choose one form of assessment over the other. We’ll share some guidelines with you right away.

When to rely on formative assessment

Although everything will depend on your educational strategy, there are 4 critical moments when you can successfully apply formative assessment:

1. At the beginning of a topic. It is useful for identifying gaps before the new information lacks the necessary structures for assimilation.
2. During active instruction. It helps identify conceptual errors before they become entrenched mistakes on the final test.
3. When progress stalls. It helps reveal the mismatch that may exist when a student is putting in effort but not getting results.
4. To foster metacognition. It helps students learn to identify on their own when they are encountering difficulties. It is a way to promote self-regulated learning.

When summative assessment is the right tool

Summative assessment provides the necessary rigor in these three contexts:

1. At the end of a cycle. It verifies whether or not the objectives have been achieved.
2. To grant an official certification. It provides a verifiable and standardized record.
3. When it is necessary to validate high-impact competencies. It transforms the student into a professional or candidate ready for the next challenge.

If we had to summarize what summative assessment is in a few words, we could liken it to a filter.

In backward design (designing a course from scratch by starting at the end), both types of assessment are essential: determine what your students must demonstrate in the summative assessment and, from there, build the formative checkpoints one by one in reverse.

Continue exploring this topic with these resources

The following resources will help you delve deeper into the balance between formative and summative assessment:

• Poorvu Center for Teaching and Learning (Yale University). It offers an academic comparison on how to design rubrics and exams that truly measure deep learning in college.
• National Center for Education Statistics (NCES). This is the official website of the National Assessment of Educational Progress (NAEP). It allows educators to explore questions from actual national exams, among other resources.
• Visible Learning: The Sequel: A Synthesis of Over 2,100 Meta-Analyses Relating to Achievement: A Book Review. This is the academic review of the book Visible Learning: The Sequel (John Hattie, 2023), the largest synthesis of educational evidence that analyzes over 130,000 studies to determine which teaching strategies have the greatest real impact on student performance.