Sampling Methods
- Created by: georgiasamp
- Created on: 16-09-16 17:24
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- Sampling Methods
- Stratified Sampling
- The target population is divided into subgroups and a random sample is taken from these - it is representative of the population
- Advantages: Representative of the population
- Disadvantages: Time consuming to identify subgroups, select and contact participants
- Random Sampling
- All members of the target population stand equal chance of being selected
- Advantages: unbiased; equal chance of selection
- Disadvantages: Requires a sampling frame (list of people in target population; takes time to contact participants.
- Opportunity Sampling
- Selecting anyone who is available from the target population
- Advantages: less time to locate people
- Disadvantages: possibility of untrue representation of population
- Self-Selecting Sampling
- Participants volunteer to take part in study
- Advantages: Variety of participants, possiblity of more true representation of population
- Disadvantages:may be biased and only involve extremely motivated people
- Systematic Sampling
- Participants are selected from a list at fixed intervals
- Advantages: Unbiased, selected from objective system
- Untitled
- Stratified Sampling
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