题目 1 · short_answer
4 分Describe two non-probability sampling techniques used in sociological research.
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解题
Two non-probability sampling techniques:
1. Snowball sampling:
- Identification: Snowball sampling (1 mark)
- Description: A technique where the researcher makes contact with an initial participant who fits the research criteria, and that person introduces or refers the researcher to further eligible participants, causing the sample size to grow like a rolling snowball (1 mark).
2. Quota sampling:
- Identification: Quota sampling (1 mark)
- Description: A method where the researcher is given specific quotas of people to interview based on demographic characteristics (such as age, gender, or social class) to mirror the population, but chooses the actual participants non-randomly until each quota is filled (1 mark).
(Other acceptable techniques include opportunity/convenience sampling, purposive sampling, and volunteer/self-selecting sampling).
1. Snowball sampling:
- Identification: Snowball sampling (1 mark)
- Description: A technique where the researcher makes contact with an initial participant who fits the research criteria, and that person introduces or refers the researcher to further eligible participants, causing the sample size to grow like a rolling snowball (1 mark).
2. Quota sampling:
- Identification: Quota sampling (1 mark)
- Description: A method where the researcher is given specific quotas of people to interview based on demographic characteristics (such as age, gender, or social class) to mirror the population, but chooses the actual participants non-randomly until each quota is filled (1 mark).
(Other acceptable techniques include opportunity/convenience sampling, purposive sampling, and volunteer/self-selecting sampling).
评分标准
Award up to 4 marks in total:
For each technique (up to a maximum of two):
- 1 mark for identifying a valid non-probability sampling technique.
- 1 mark for describing how the technique is selected or conducted.
Indicative content:
- Snowball sampling: An initial contact refers other participants, creating an expanding network or chain of respondents.
- Opportunity / convenience sampling: Choosing participants who are readily available and easily accessible to the researcher at a given time/place.
- Quota sampling: Setting target numbers for specific demographic categories and selecting participants non-randomly until categories are full.
- Purposive sampling: Hand-picking participants specifically chosen because they possess unique characteristics or knowledge relevant to the study.
- Volunteer / self-selected sampling: Participants choose to take part in response to an advert or appeal.
Note: Probability sampling techniques (e.g. simple random, systematic, stratified random) must NOT be credited.
For each technique (up to a maximum of two):
- 1 mark for identifying a valid non-probability sampling technique.
- 1 mark for describing how the technique is selected or conducted.
Indicative content:
- Snowball sampling: An initial contact refers other participants, creating an expanding network or chain of respondents.
- Opportunity / convenience sampling: Choosing participants who are readily available and easily accessible to the researcher at a given time/place.
- Quota sampling: Setting target numbers for specific demographic categories and selecting participants non-randomly until categories are full.
- Purposive sampling: Hand-picking participants specifically chosen because they possess unique characteristics or knowledge relevant to the study.
- Volunteer / self-selected sampling: Participants choose to take part in response to an advert or appeal.
Note: Probability sampling techniques (e.g. simple random, systematic, stratified random) must NOT be credited.