T--Sampling

Question 1

Random sampling

Answer 1

• Every member of the target population has an equal chance of becoming part of the sample

Strengths:
• Sufficient size, make the results easily generalizable, ensure the representativeness

Limitations:
• Not practical to carry out truly random sampling

Question 2

Convenience (opportunity) sampling

Answer 2

• Recruit participants that are easily available

Strengths:
• When financial resources are limited
• When generalization of the findings is not the focus

Limitations:
• Low generalizability due to sample bias

Question 3

Stratified sampling

Answer 3

• Demographic differences
• Proportionally representative of the group

Strengths:
• Allow researcher to control representativeness of some key characteristics
• When the researcher is certain about which characteristic are essential in a small sample size

Limitations:
• Hard to implement
• Requires more knowledge about characteristics of the target population

Question 4

Self-selected sampling

Answer 4

• Recruit volunteers through newspaper

Strengths:

• Quick and easy
• Wide range of participants

Limitations:
• Limited representativeness and generalization
• Some volunteers pursue monetary incentives for their participation