Sampling

• What is opportunity sampling?

  Asking available individuals such as classmates or family
• What is an advantage of opportunity sampling?

  It is time and cost efficient
• What is a disadvantage of opportunity sampling?

  It is likely to be biased due to researcher influence
• How do participants volunteer in self-selecting sampling?

  Participants volunteer via advertisements like posters or online ads
• What is an advantage of self-selecting sampling?

  Participants are motivated and more serious about participation
• What is a disadvantage of self-selecting sampling?

  Self-selected participants may differ from non-volunteers, leading to lack of representativeness
• What is systematic sampling?

  Selecting every nth person from a list
• What is an advantage of systematic sampling?

  It has no preconceptions or bias, allowing for objective selection
• What is a disadvantage of systematic sampling?

  Participants can refuse participation, and the sample may be androcentric
• What is random sampling?

  It gives every individual an equal chance of being selected
• What is an advantage of random sampling?

  It avoids researcher bias and increases population validity
• What is a disadvantage of random sampling?

  It can be time-consuming and costly
• What is stratified sampling?

  It involves categories that reflect the target population with proportions selected randomly
• What is an advantage of stratified sampling?

  It is the most representative method and reduces bias
• What is a disadvantage of stratified sampling?

  It is complex and time-consuming, requiring careful calculation and selection