Test Preparation

Understanding Different Types of Assessment

A plain explanation of types of assessment: formative, summative, diagnostic, ipsative, and norm- versus criterion-referenced, and how knowing them helps you prepare.

On this page
  1. Why the type of assessment matters
  2. Formative and summative: the most common pair
  3. Other kinds you may meet
  4. Question formats are separate from purpose
  5. How to prepare differently
  6. Getting value from low-stakes assessment
  7. A note on fairness and support
  8. Putting it together

Why the type of assessment matters

“Assessment” is a broad word. A quick classroom quiz, a project portfolio and a final exam all assess learning, but they have different purposes, different stakes and different best ways to prepare. Knowing what kind of assessment you face helps you decide how much effort to give it, what to expect from the result and how to use it.

This article explains common categories in plain terms. Names and practices vary between schools, countries and exam bodies, so check your own course’s definitions.

Formative and summative: the most common pair

Formative assessment happens during learning, and its purpose is to guide it. Examples include practice quizzes, questions in class, drafts that receive comments, and short exit tickets at the end of a lesson. The marks, if any, usually count for little or nothing. What matters is the information: what has been understood and what needs more work.

Summative assessment happens at the end of a unit, term or course, and its purpose is to summarize what was achieved. Final exams, end-of-unit tests and major projects typically fall here. The result is often recorded and may affect grades or progression.

The same activity can serve either purpose depending on how it is used. A practice test is formative when you use the results to plan further study, and a similar test sat under formal conditions may be summative.

A helpful way to remember: formative assessment is like tasting the soup while cooking, and summative is the customer eating it. The comparison is a popular one, though it is only an analogy.

Other kinds you may meet

  • Diagnostic assessment. Given at the start of a course or topic to find out what you already know. It is not meant to judge you; it helps a teacher or you choose where to begin. A self-made quiz before starting a new unit is a simple version.
  • Ipsative assessment. Compares your performance with your own previous results instead of with other people. It highlights personal progress, which can be motivating.
  • Norm-referenced assessment. Compares you with other test takers, such as by ranking or percentiles. Your result depends partly on how others did.
  • Criterion-referenced assessment. Measures you against a fixed standard or set of skills, for example “can solve this type of equation” or “can write a clear argument.” Many driving tests and skills checks work this way.
  • Standardized tests. Given and marked under consistent conditions so results can be compared. Some are norm-referenced and some criterion-referenced.
  • Performance and authentic assessment. Ask you to do something realistic, like give a presentation, conduct an experiment, build a model or solve a real-world problem.
  • Portfolio assessment. Judges a collection of work over time, often with reflection on how it developed.
  • Peer and self-assessment. Learners review their own or each other’s work against given criteria. These can build understanding of what good work looks like.
  • Open-book and take-home exams. Allow resources, shifting emphasis from memorizing facts to applying and interpreting them.
  • Oral assessments. Spoken questions or presentations, which test explanation and thinking on your feet.

Question formats are separate from purpose

It is also useful to distinguish how an assessment is asked from why. Selected-response formats, like multiple-choice and true or false, offer options to choose from. Constructed-response formats, like short answers, essays and problem solving, ask you to produce an answer. A formative quiz and a summative exam can use either.

How to prepare differently

Preparing well starts with asking a few questions about any assessment:

  1. What is its purpose? Practice or final judgment?
  2. How much does it count? A heavily weighted exam deserves more planning than a low-stakes quiz.
  3. What skills does it require? Recall, application, analysis, creation or communication?
  4. What format is it? Written, spoken, practical, timed or open-book?
  5. How will it be marked? Against criteria, a rubric or other candidates?

Some examples of matching preparation to assessment:

  • For a knowledge-based test, active recall and spaced repetition suit well.
  • For problem-solving papers, working through many varied problems matters more than rereading, and studying worked examples first can help.
  • For essays, practice planning and structuring answers within time limits.
  • For projects, break work into stages with deadlines and ask for feedback on drafts.
  • For oral tasks, rehearse aloud, preferably in front of someone.
  • For open-book exams, organize your materials in advance, but do not assume they replace understanding; searching a book takes time.

If the assessment is criterion-referenced, read the criteria or rubric closely. Many marks are won simply by addressing what the criteria list. If it is norm-referenced, remember that you cannot control how others perform, so concentrate on your own preparation. Setting clear learning objectives for yourself from the course outline helps with both.

Getting value from low-stakes assessment

Formative tasks are easy to dismiss because they carry few marks. But they are often the cheapest chance to find gaps, and the feedback can shape later results. Treating them seriously, attempting them honestly without looking up answers first, and acting on the comments tends to pay off later. This links with tracking your learning progress across a term.

A note on fairness and support

Assessments do not suit everyone equally. Some learners need adjustments, such as extra time or a different format, for reasons such as a disability or a learning difference like dyslexia. If this might apply to you, ask your school or exam provider early about what is available, since arrangements can take time to set up.

Putting it together

Assessment is not only something done to learners; it is also information they can use. Knowing whether a task is meant to teach, diagnose or judge helps you set your effort, choose your methods and interpret the outcome sensibly. Because definitions differ by place, always check the exact rules and marking approach for your own course before deciding how to prepare.

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