Test your knowledge of sampling data in fieldwork with this 15-question A level quiz.

If you haven't already done it, work through the unit on sampling data in fieldwork on the PowerPoint. Or look at it again to help fill in any gaps in what you know!

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HIGH SCORES

Rank Name Score
1st NWM 28
2nd FIN 28
3rd FIN 28
4th jdp 28
5th ALK 28
6th EJC 28
7th DAN 28
8th JVV 28
9th ltn 28
10th EMI 28

QUIZZES // Sampling data in fieldwork

Q1. Which of the following is a valid reason to try to collect data from a whole population rather than just a sample of one?

If the method is known to create biased results

If two populations are being compared with each other

If the population is very small

If the population is very large

Q2. What is the minimum sample size to carry out a Spearman’s rank correlation coefficient test?

10 pairs of individuals

15 pairs of individuals

20 pairs of individuals

25 pairs of individuals

Q3. A sample should be _____________ the population being observed.

the same size as

half the size of

distinctly different from

representative of

Q4. When might it be useful to separate a sample into different classes?

When the sample is quite small.

When carrying out a stratified sample of a population.

If you are comparing one location with another.

If you are comparing one time frame with another.

Q5. A student carries out a questionnaire survey. They target respondents of different ages in proportions similar to the age profile of the town. This is an example of…?

Random sampling

Stratified sampling

Systematic sampling

Opportunistic sampling

Q6. A student wishes to sample some pieces of beach sediment. They throw an open square quadrat onto the beach surface and collect data from the sediment found in that square only. This is an example of…?

Random sampling

Stratified sampling

Systematic sampling

Opportunistic sampling

Q7. A student needs to carry out a housing survey throughout a residential area. To save time they decide to only survey every third house along a street. This is an example of…?

Random sampling

Stratified sampling

Systematic sampling

Opportunistic sampling

Q8. An advantage of using systematic sampling is that…?

the researcher can react to the condition of the field location as they experience it.

it requires you to know nothing of the population or fieldwork location in advance.

it is difficult to inadvertently create researcher bias.

the sample is truly representative of the characteristics of the population.

Q9. The main advantage of using opportunistic sampling is that…?

the researcher can react to the condition of the field location as they experience it.

it requires you to know nothing of the population or fieldwork location in advance.

it is difficult to inadvertently create researcher bias.

the sample is truly representative of the characteristics of the population.

Q10. The main advantage of using stratified sampling is that…?

the researcher can react to the condition of the field location as they experience it.

it requires you to know nothing of the population or fieldwork location in advance.

it is difficult to inadvertently create researcher bias.

the sample is truly representative of the characteristics of the population.

Q11. The main advantage of using random sampling is that…?

the researcher can react to the condition of the field location as they experience it.

it requires you to know nothing of the population or fieldwork location in advance.

it is difficult to inadvertently create researcher bias.

the sample is truly representative of the characteristics of the population.

Q12. A student chooses the location of an environmental quality survey by selecting a random road junction on a map of a town. This is an example of…?

Point sampling

Line sampling

Polygon sampling

A combination of two of the above

Q13. A student chooses transects on a map along which they will continuously measure decibel readings. This is an example of…?

Point sampling

Line sampling

Polygon sampling

A combination of two of the above

Q14. A student chooses the location of individual vegetation surveys (using a quadrat) along a transect marked out across a sane dune. This is an example of …?

Point sampling

Line sampling

Polygon sampling

A combination of two of the above

Q15. Which of the following data collection techniques is likely to work best with snowball sampling?

Key player interviews

Sites and services surveys

Meteorological data readings

Soil infiltration surveys

Finished!

You scored this time. The more correct answers you give, and the fewer incorrect answers you guess, the better your score.

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