O Level Geography Fieldwork Quiz

Answer Key - O-Level Geography Quiz (Fieldwork)

1. Difference: A research question is an open-ended inquiry (e.g., "How does X affect Y?"), whereas a hypothesis is a testable prediction of a relationship (e.g., "As X increases, Y decreases"). [1]

2. Hypothesis: "The number of retail shops decreases as the distance from the city center increases." (Accept any logically sound hypothesis linking distance and shop count). [2]

3. Methods: (Any two) Questionnaires, Interviews, Land-use mapping, Observation/Tally sheets, Environmental quality surveys. [2]

4. Reconnaissance:

   • Identify potential hazards to ensure student safety. [1]
   • Check the accessibility of the site and availability of transport. [1]
   • Refine the sampling strategy or adjust the research question based on actual site conditions. [1]

5. Systematic Sampling:

   • Establish a transect line across the beach. [1]
   • Select samples at regular, predetermined intervals (e.g., every 5 meters). [1]
   • Collect the soil sample at each of these fixed points. [1]

6. Instrument: Anemometer. [1]

7. Graph Suggestion:

   • Use a grouped bar chart or a multi-line graph. [1]
   • X-axis represents the five locations; Y-axis represents temperature. [1]
   • Use different colors or symbols for each location to allow direct comparison of values. [1]

8. Bipolar Survey:

   • Use a scale with two opposite adjectives at either end (e.g., "Very Clean" vs "Very Dirty"). [1]
   • Assign a numerical value to the scale (e.g., -3 to +3). [1]
   • Mark the perceived quality on the scale for various environmental features. [1]

9. Calculation:

   • Assign weights to responses (e.g., Strongly Agree = +2, Agree = +1, Disagree = -1, Strongly Disagree = -2). [1]
   • Multiply the number of responses in each category by its weight. [1]
   • Sum the results to find the net positive or negative score for the amenity. [1]

10. Questionnaire:

    • Advantage: Allows for the collection of a large amount of quantitative data quickly; captures subjective opinions/perceptions. [2]
    • Disadvantage: Respondents may provide dishonest answers (social desirability bias); low response rates if the survey is too long. [2]

11. Clinometer Procedure:

    • Ensure the clinometer is held steady and aligned with the eye. [1]
    • Sight the top of the slope from the current position. [1]
    • Read the angle carefully and take multiple readings at the same point to calculate an average. [1]

12. Sample Size:

    • To ensure the data is representative of the entire population. [1]
    • To reduce the impact of anomalies or outliers. [1]
    • To increase the statistical reliability and validity of the conclusions drawn. [1]

13. Spatial Association: A negative spatial association (as distance from the station increases, pedestrian volume decreases). [2]

14. Map Use:

    • Identify areas with high building density and low vegetation cover (concrete jungles). [1]
    • Locate industrial zones or heavy traffic corridors. [1]
    • Compare these with "green" areas like parks to select contrasting sites for temperature measurement. [1]

15. Reliability Evaluation:

    • Unreliable. [1]
    • December is a peak holiday period (school holidays/Christmas), meaning visitor numbers are likely higher than average. [1]
    • A single day does not account for seasonal variations (e.g., off-peak months). [1]
    • Conclusion: The data is a snapshot and cannot be extrapolated to represent annual trends. [1]

16. GIS vs Hand-drawn:

    • GIS allows for the overlay of multiple data layers (e.g., land use and temperature). [1]
    • It provides higher precision in spatial plotting and scaling. [1]
    • It can be easily updated and shared digitally for better visualization. [1]

17. Closed Questions:

    • Limits the data to quantitative "yes/no" counts. [1]
    • Prevents respondents from explaining why they feel a certain way (lack of qualitative depth). [1]
    • May force respondents into a choice that doesn't accurately reflect their nuanced opinion. [2]

18. Beach Profile Reliability:

    • Reliable. [1]
    • The 2m interval is consistent and systematic, ensuring full coverage of the beach profile. [1]
    • It allows for the identification of specific changes in gradient (e.g., berms). [1]
    • However, reliability depends on the accuracy of the equipment used (e.g., ranging poles). [1]

19. Secondary Data:

    • Compare fieldwork results with official statistics (e.g., government reports, census data). [1]
    • If the trends in the fieldwork data match the official data, the findings are more valid. [1]
    • Identify discrepancies that may indicate errors in the fieldwork methodology. [1]

20. Evaluation (6 marks):

    • Agree: The method must match the objective. Using a questionnaire for physical data (like wind speed) would fail; using a clinometer for social perceptions would be useless. The method determines the quality and type of data. [2]
    • Disagree/Other Factors: Other factors are equally critical:
      • Sampling strategy (e.g., random vs systematic) affects bias. [1]
      • Timing and location of data collection (e.g., peak vs off-peak). [1]
      • Accuracy of the instruments used. [1]
    • Conclusion: While the method is fundamental, it must be paired with a rigorous sampling strategy and accurate execution to ensure a successful investigation. [1]