Sampling Techniques (U1)

Question 1

Opportunity sampling

Answer 1

Also called convenience sampling. A sampling technique where participants are selected based on naturally occurring groups or participants who are easily available.

Question 2

Random sampling

Answer 2

Selecting a sample of participants from a larger potential group eligible individuals, such that each person has the same fixed probability of being included in the sample.

Question 3

Self-selected sampling

Answer 3

Also called volunteer sampling. Participants choose to become part of a study because they volunteer by responding to an advert or a request to take part in a study.

Question 4

Stratified Random Sampling

Answer 4

A method of probability sampling in which the population is divided into different subgroups or “strata” and then a random sample is taken from each “stratum”.