Research Methods ( Types of Sampling Techniques )

Question 1

Random + -?

Answer 1

+ Unbiased - all equal chances
+ Less chance of researcher bias

• Time consuming
• Freak’s bias

Question 2

Opportunity Sampling + -?

Answer 2

+ Quick and easy
+ Useful when sampling frame unknown

• Bias sample - similar characteristics
• Researcher Bias

Question 3

Volunteer Sampling + -?

Answer 3

+ Quick and easy
+ More ethical - valid consent

• volunteer bias
• demand characteristics

Question 4

Systematic Sampling + -?

Answer 4

+ Less chance of researchers bias
+ Quicker than stratified

• Still may result in freaks bias
• can’t be used when sampling frame is unknown

Question 5

Stratified Sampling + -?

Answer 5

+Most representative (of sampling frame)
+Less chance of researchers bias

-Time consuming
-Freaks bias

Question 6

When to use Stratified Sampling?

Answer 6

When a population/ (sampling frame) characteristics are diverse and when researchers want to make sure every characteristic is represented in the sample.

Question 7

What is Systematic Sampling?

Answer 7

A type of sampling technique where participants are selected for research at regular intervals

Question 8

What is Opportunity Sampling?

Answer 8

A type of sampling technique that revolves selecting participants which are available at that time the researcher wants to do there research..