Sampling Methods in Geography Quiz

What is the definition of systematic sampling in geography?

• Selecting samples based on convenience or availability

• Selecting samples at regular intervals along a transect or grid

• Dividing the population into groups and sampling each group proportionally

• Selecting samples entirely by chance

Which of the following is an advantage of random sampling?

• It is the quickest method

• It reduces bias and gives every member an equal chance of selection

• It ensures all groups are represented

• It is the easiest to organise

What is a disadvantage of opportunistic sampling?

• It is time-consuming

• It can be very biased and unrepresentative

• It requires complex calculations

• It always needs a large sample size

Stratified sampling involves:

• Selecting samples at random from the whole population

• Selecting samples at regular intervals

• Dividing the population into sub-groups and sampling each group proportionally

• Choosing samples based on what is easiest

Which sampling method is most likely to ensure all sub-groups in a population are represented?

• Random sampling

• Systematic sampling

• Stratified sampling

• Opportunistic sampling

A disadvantage of systematic sampling is:

• It is always biased

• It may miss patterns that occur between intervals

• It is too expensive

• It is too random

Which of the following best describes random sampling?

• Every member of the population has an equal chance of being selected

• Samples are chosen at regular distances

• Only the most accessible samples are chosen

• Samples are chosen based on the researcher's judgement

What is an advantage of systematic sampling?

• It is very quick and easy to carry out

• It always gives a representative sample

• It is the only unbiased method

• It requires no planning

Which sampling method is most likely to be affected by the researcher's personal bias?

• Random sampling

• Systematic sampling

• Stratified sampling

• Opportunistic sampling

A key disadvantage of stratified sampling is:

• It is always biased

• It can be complicated and time-consuming to organise

• It never represents the population

• It is too simple