Snowball Sampling Flashcards

1️⃣ Familiarise yourself with the flashcards:

Look through all the flashcards to see what's on both sides.
Make sure you understand the information on each card. If something's unclear, click the link to the revision notes at the bottom of the page for more details.

2️⃣ Test yourself:

Look at the question or prompt on each card and try to remember the answer before flipping it over.
Check the answer and make a note of any cards you find challenging and need to go over more.

3️⃣ Consistently Review and Practice:

Use spaced repetition: spend more time on the cards you struggle with and go over them more often.
Regularly review all the flashcards to help you better understand and retain the information over time.

Note: We may include questions that have multiple correct answers. It's useful to remember specific examples to understand these concepts better.

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What is snowball sampling?

A method where people recruit others, so the sample grows like a snowball.

Start with one person. Ask for names. Contact them, then repeat the process.

When studying hidden or hard-to-reach groups, like drug users or people who sleep on the street.

It helps researchers reach people they could not find on their own.

People do some recruiting, so the researcher spends less time and money.

It can be biased, as people often recruit friends who are like them.

Usually no, because the sample is not a good mix of people.

Not random; people are chosen by others, not by chance.

Get consent and keep names and details private when people share contacts.

Start with several different first contacts and limit how many each can suggest.

A trusted person who gives access and suggests the first contacts.

When they have enough people or few new names are given.