science

Pearl growing

Pearl growing 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 Pearl growing rather than just read about it. In short: Pearl growing is a metaphor taken from the process of small bits of sand growing to make a beautiful pearl, which is used in information literacy. This is also called "snowballing", alluding to the process of how a snowball can grow into a big snow-man by accumulating snow.

Key takeaways

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

Reference excerpt

Pearl growing is a metaphor taken from the process of small bits of sand growing to make a beautiful pearl, which is used in information literacy. This is also called "snowballing", alluding to the process of how a snowball can grow into a big snow-man by accumulating snow. In this context this refers to the process of using one information item (like a subject term or citation) to find content that provides more information items. This search strategy is most successfully employed at the beginning of the research process as the searcher uncovers new pearls about his or her topic.

Citation pearl growing Citation pearl growing is the act of using one relevant source, or citation, to find more relevant sources on a topic. The searcher usually has a document that matches a topic or information need. From this document, the searcher is able to find other keywords, descriptors and themes to use in a subsequent search. Citation Pearl Growing is a popular search and retrieval method used by librarians.

Subject pearl growing Subject pearl growing is a strategy used in an electronic database that has subject or keyword descriptors. By clicking on one subject, the searcher is able to find other related subjects and subdivisions that may or may not be useful to the search.

Internet pearl growing Searchers use the pearl growing technique when surfing the Internet. Using the theory that websites that link to each other are similar, a searcher can move from site to site, collecting information. Ramer (2005) suggests pearl growing by using the pearl as a search term in search engines or even in the URL.

Systematic literature review pearl growing In systematic literature reviews, pearl growing is a technique used to ensure all relevant articles are included. Pearl growing involves identifying a primary article that meets the inclusion criteria for the review. From this primary article, the researcher works backwards to find all the articles cited in the bibliography and checks them for eligibility for inclusion in the review. The researcher then works forwards to search for any articles that have cited the primary article. It is estimated that up to 51% of references in a systematic review are identified by pearl growing. There is evidence that using pearl growing for systematic reviews is a more comprehensive approach and more likely to identify all relevant articles compared to online database searches. Pearl growing, when applied to scientific literature, may also be referred to as citation mining or snowballing.

References

External links Citation Pearl Growing Archived 2009-07-10 at the Wayback Machine from Creighton University Pearl Growing Technique by Chun Wei Choo at University of Toronto Pearl Growing in Systematic Literature Reviews by Dr Ruth Hadfield at Macquarie University

Worked examples

Example 1 — a first encounter with Pearl growing

Start with the simplest possible case. Write down what Pearl growing 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 Pearl growing 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 Pearl growing 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 Pearl growing

In research: Pearl growing 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 Pearl growing 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: Pearl growing is common in secondary-school and first-year university syllabi. It links to neighbouring topics Information science, so understanding it makes those chapters shorter.
In everyday life: Look for Pearl growing 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 Pearl growing in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Pearl growing 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 Pearl growing out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Pearl growing in simple terms?

Why does Pearl growing 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 Pearl growing?

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 Pearl growing.