G.I. topic 3

Question 1

What are the types of sampling ?

Answer 1

1. probability sampling
   simple random sampling
   stratified random sampling
2. non probability sampling
   convenience sampling
   quota sampling

Question 2

What is probability sampling ?

Answer 2

1. randomly selected samples
2. done using rng or die
3. removes biasness of researcher
4. has a greater chance of creating a representative sample

Question 3

What is non probability sampling ?

Answer 3

1. non randomly selected, often using researcher’s conscious decision
2. subjectively selected samples eg family and close friends
3. biased
4. unlikely to be representative as they were subjectively selected
   hard to make generalisations off it
   used in :
   time limited situations
   unnecessary to select representative sample when testing

Question 4

What is simple random sampling and stratified random sampling ?

Answer 4

1. simple
   members are given numbers
   using rng to determine who is interviewed / tested
2. stratified
   selecting a sample that as a proportionate makeup to the population
   eg when population is 65% female and 35% male, percentage of interviewees must much that
   rng / die used to select specific sample

Question 5

What is convenience sampling and quota sampling ?

Answer 5

1. quota sampling
   select sample that has proportionate makeup to population based on age and sex or other categories
   convenience sampling used to select specific sample
2. convenience sampling
   samples are collected as they are convenient sources of data eg people walking down the street or friends

Question 6

What are the advantages of predefined sampling ?

Answer 6

1. use of predefined response guides the people -> easier for them to answer
2. easier to analyse and interpret for the researches
3. useful for quantitative data analysis to examine patterns and trends

Question 7

What are mental maps ?

Answer 7

1. used to collect data how people experience and think visually and spatially about their environment
2. dynamic interrelationships people have with their environment
   blank paper / base map give for the people to analyse
3. blank paper (free form mental maps) represents participant’s perceptions of places better