Convenience sample

Question 1

Convenience sample

Answer 1

• Asking people who are already in the area to participate.
• Qualitative & Quantitative.

Question 2

Convenience sample strengths

Answer 2

Accessibility

Question 3

Convenience sample limitations

Answer 3

• selection bias (particularly sampling bias)
• can’t take too long

Question 4

Random sampling

Answer 4

• Every element in the population has an equal probability of being selected.
• Quantitative

Question 5

Random sampling strength

Answer 5

• High External Validity
• Minimizes Selection Bias
• Permits Inference

Question 6

Random sampling limitation

Answer 6

• Requires a Complete Sampling Frame
• Can Be Impractical
• Potential for Non-Sampling Error

Question 7

Volunteer Sampling

Answer 7

• A NON-probability sampling technique where participants self-select to be involved in a study by volunteering their time and effort.
• open invitations or advertisements.
• QUALITATIVE

Question 8

volunteer sampling strengths

Answer 8

• Ease of recruitment
• Cost-effectiveness
• Quick data collection

Question 9

volunteer sampling limitations

Answer 9

selection bias (self-selection bias, sampling bias)

Question 10

Purposive sampling

Answer 10

• Done with purpose, seek certain characteristics
• through advertisements, referrals, and direct recruitment
• qualitative

Question 11

Purposive sampling strengths

Answer 11

• in-depth insight
• Higher internal validity

Question 12

Purposive sampling limitations

Answer 12

• time-consuming
• may not agree to participate
• Researcher Bias
• Low external validity

Question 13

Snowball sampling

Answer 13

Relies on existing study subjects to recruit future subjects from among their acquaintances

Question 14

Snowball sampling strength

Answer 14

• Access to Hard-to-Reach Populations
• Cost-Effective
• Building Trust
• Rich Qualitative Data

Question 15

Snowball sampling limitation

Answer 15

• Sampling Bias
• low external validity
• Dependence on Initial Participants
• Ethical Concerns (privacy issues)