Discuss sampling techniques appropriate to qualitative research

Question 1

Discuss sampling techniques appropriate to qualitative research: Strengths of purposive sampling (3)

Answer 1

• participants represent the research topic because they are selected specifically based on salient characteristics (relevant to the research)
• relatively easy way to select a sample
• the sample may be supplemented with more participants during research until the researchers feel they have enough data to produce a theory (data saturation)

Question 2

Discuss sampling techniques appropriate to qualitative research: Limitations of purposive sampling (2)

Answer 2

• biased (objective selection criteria documented, and explained then bias is only limited)
• difficult to generalise

Question 3

Discuss sampling techniques appropriate to qualitative research: Strengths of snowball sampling (2)

Answer 3

• cost-efficient and easy to recruit people

- useful in sensitive research where participants are not easily accessible (e.g. prostitutes)

Question 4

Discuss sampling techniques appropriate to qualitative research: Limitations of snowball sampling (2)

Answer 4

• likely to be biased because participants know each other and likely have the same experiences/attitudes
• ethical issues (anonymity/confidentiality) are difficult to maintain

Question 5

Discuss sampling techniques appropriate to qualitative research: Strengths of convenience sampling (2)

Answer 5

• easy and cost-efficient to recruit people

- quick way to collect data and do research

Question 6

Discuss sampling techniques appropriate to qualitative research: Limitations of convenience sampling (2)

Answer 6

• likely to be biased

- likely to generate research with low credibility and poor in information

Question 7

Discuss sampling techniques appropriate to qualitative research

Answer 7

Strengths/limitations:

• convenience sampling
• snowball sampling
• purposive sampling