Sampling Techniques

Question 1

Random sampling pros

Answer 1

Economical in nature, less time consuming, less chance of bias

Question 2

Cons of random sampling

Answer 2

Need to define the categorical variable by which subgroups should be created. Improper selection may cause the whole process to defunct

Question 3

Pros of systematic

Answer 3

Simplicity
Allows researcher to add degree of system or prices into random selection.
Independent less chance of bias

Question 4

Cons of systematic

Answer 4

High chance of sampling error

Works only for random population may not be suitable for large population

Question 5

Stratified random sampling probs

Answer 5

Less time consuming
Less chance of bias compared to simple random sampling
Higher accuracy

Question 6

Cons of stratified

Answer 6

Need to define the categorical variable
Subgroups should be created
Age gender occupation income education

Question 7

Snowball pros

Answer 7

Allows for studies to take place where otherwise it may be impossible
Helps discover characteristics about a population

Question 8

Cons of snowballing

Answer 8

Usually impossible to determine the sampling error or make inferences

Question 9

Quota pros

Answer 9

Relatively easy to administer
Quick
Cost effective

Question 10

Cons to quota sampling

Answer 10

Not random

Potential selection bias