science

Item bank

Item bank is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Item bank rather than just read about it. In short: An item bank or question bank is a repository of test items that belong to a testing program, as well as all information pertaining to those items. In most applications of testing and assessment, the items are of multiple choice format, but any format can be used.

Key takeaways

Item bank belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Item bank to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Item bank from memory before moving on to harder problems.

Reference excerpt

An item bank or question bank is a repository of test items that belong to a testing program, as well as all information pertaining to those items. In most applications of testing and assessment, the items are of multiple choice format, but any format can be used. Items are pulled from the bank and assigned to test forms for publication either as a paper-and-pencil test or some form of e-assessment.

Types of information An item bank will not only include the text of each item, but also extensive information regarding test development and psychometric characteristics of the items. Examples of such information include:

Item author Date written Item status (e.g., new, pilot, active, retired) Angoff ratings Correct answer Item format Classical test theory statistics Item response theory statistics Linkage to test blueprint Item history (e.g., usage date(s) and reviews) User-defined fields

Item banking software Because an item bank is essentially a simple database, it can be stored in database software or even a spreadsheet such as Microsoft Excel. However, there are several dozen commercially available software programs specifically designed for item banking. The advantages that these provide are related to assessment. For example, items are presented on the computer screen as they would appear to a test examinee, and item response theory parameters can be translated into item response functions or information functions. Additionally, there are functionalities for publication, such as formatting a set of items to be printed as a paper-and-pencil test. Some item banks also have test administration functionalities, such as being able to deliver e-assessment or process "bubble" answer sheets.

Examples In India the popular question bank is Oswaal Question Bank which covers all Indian board and competitive exam such as CBSE, CISCE, Pre-university course- State board and JEE, NEET, CLAT and CUET.

References

Worked examples

Example 1 — a first encounter with Item bank

Start with the simplest possible case. Write down what Item bank claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Item bank before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Item bank ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Item bank

In research: Item bank appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Item bank in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Item bank is common in secondary-school and first-year university syllabi. It links to neighbouring topics Psychometrics, School examinations, Standardized tests, so understanding it makes those chapters shorter.
In everyday life: Look for Item bank outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Item bank in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Item bank means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Item bank out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Item bank in simple terms?

Why does Item bank matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Item bank?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Item bank.