sampling techniques

Question 1

types of probability sampling

Answer 1

systemic, stratified, and simple random

Question 2

non probability sampling

Answer 2

convenience, snowball, and purposive

Question 3

simple random advantage

Answer 3

it is a representative method involves no researcher bias

Question 4

simple random disadvantage

Answer 4

only possible when every member of target population can be identified which in many cases cannot be possible

Question 5

stratified random advantage

Answer 5

allows representation of every subgroup in population and is also statistically precise

Question 6

stratified random disadvantage

Answer 6

it is labor intensive and prone to researcher bias

Question 7

systemic random disadvantage

Answer 7

it is not always representative and can miss key members of target population

Question 8

opportunity/convienience sampling disadvantage

Answer 8

they are not statistically generalizable and can also bebiased by the researcher

Question 9

volunteer sampling disadvantage

Answer 9

can be biased by volunteers and is prone to participant variables and is not very representative of the population

Question 10

purposive sampling advantage

Answer 10

useful when the target population of a study is rare- people who are hidden in some way useful as a quick way to fill the sample without worrying about representativeness

Question 11

purposive sampling disadvantage

Answer 11

it may tend to overrepresent a subgroup of the population

Question 12

snowball sampling disadvantage

Answer 12

anonymity is lost, representativeness is not guaranteed and is prone to sampling bias