Research Methods

Question 1

What is random sampling

Answer 1

Type of lottery

E.g- names from a hat

Overall population studied wouldn’t be representative

Question 2

What is systematic sampling

Answer 2

Probability sampling

Statistical method

E.g- picking every 3rd person

Question 3

What is stratified sampling

Answer 3

Random sampling

Researchers divide their population into smaller groups (sampling frames) based on factors such as characteristics, then using systematic sampling to select the final sample

Question 4

What is purposive sampling

Answer 4

Researchers choose individuals or cases that fit the nature of the research

Occurs when researchers choose a particular group or place to study as its known to be of the type wanted

Question 5

Snowball sampling

Answer 5

Non probability sampling

Researchers pick a small group of acquainted individuals to start off, then expand this by having previous individuals recruit others

Sample starts small then gets bigger

Question 6

Volunteer sampling

Answer 6

Variation on snowball sampling

The researcher may advertise for volunteers through the internet, magazines or social media

The volunteered group may not be representative

Question 7

What is opportunity sampling

Answer 7

Means making the most of situations or opportunities in which the he population is likely to be found

Obtained by asking members of the population if interest if they would ale part in the study