Sampling techniques

A _________ population refers to a subgroup of the population that the researcher is interested in investigating.

A _________ refers to a group of people drawn from the target population who take part in the research.

A sample must be r___________ of the target population so that the findings of research can be generalised.

_____________ techniques refer to the methods used by researchers to obtain a sample from their target population

Which two of the following are the most biased sampling techniques?

• Random sampling

• Opportunity sampling

• Volunteer sampling

• Stratified sampling

• Systematic sampling

Generalisation of findings is most likely when using which sampling technique?

• Random sampling

• Opportunity sampling

• Volunteer sampling

• Stratified sampling

• Systematic sampling

_________ sampling refers to when participants in the sample are equal to to their representation in the target population.

A research recognises that 70% of their target population are female and so 70% of their sample are female. which sampling technique does this best apply to?

• Stratified sampling

• Volunteer sampling

• Opportunity sampling

• Random sampling

• Systematic sampling

Which of the following is the first step when using stratified sampling?

• Identifying the strata

• Calculating the proportions needed for the sample

• Randomly selecting the proportion needed for each stratum from the target population

• Randomly allocating participants to each condition

When using stratified sampling, researchers must identify the strata. This involves:

• Calculating the percentage proportions of people in the target population e.g. 70% being male or 20% being elderly etc.

• Calculating the nth term

• Approaching people who are nearby and asking if they are available to take part.