Q: In Spearman's rank correlation questions, candidates confuse the degrees of freedom, which is the sample size minus 2, with the sample size itself, and read the wrong row of the significance table.

Write $ n - 2 $ explicitly before you look up the critical value, and state whether your calculated correlation is positive or negative in words, not just as a number.

Question 1

Fifteen-mark essays describe a generic place, for example 'a country' or 'a river', rather than a named, specific case study, which caps the answer at Level 2, a ceiling of around 10 marks.

Accepted Answer

Before you write, note down the place name, one statistic, and one dated fact for the case study you are using, then build the essay around them from the first sentence.

Question 2

Data from a resource, such as a river level in metres or a temperature change in degrees, gets described in vague terms instead of quoted as an actual figure.

Accepted Answer

If the resource gives a number, put that number in your sentence. A trend described without a figure attached reads as an impression rather than evidence.

Question 3

Bedload erosion, meaning attrition between particles, gets confused with erosion of the channel boundary itself, which covers hydraulic action, abrasion and corrosion.

Accepted Answer

Keep the two separate: attrition is particles wearing each other down as they collide, while hydraulic action, abrasion and corrosion describe the river wearing away its own bed and banks.

Question 4

In Spearman's rank correlation questions, candidates confuse the degrees of freedom, which is the sample size minus 2, with the sample size itself, and read the wrong row of the significance table.

Accepted Answer

Write $ n - 2 $ explicitly before you look up the critical value, and state whether your calculated correlation is positive or negative in words, not just as a number.

Question 5

Choropleth map keys are built with overlapping category intervals, for example 10 to 20 and 20 to 30 sharing the boundary value, or with gaps left between bands.

Accepted Answer

Build the key before you shade anything. Check every data value falls into exactly one band, with no overlaps and no gaps, then shade from dark for the highest values to light for the lowest.

Question 6

Graphs constructed in AS 3 are missing a full title naming both variables, axis units, or a key, even when the plotting itself is accurate.

Accepted Answer

Title every graph with both variables named, label both axes with units, keep the scale regular, and add a key whenever more than one data set is plotted.

Question 7

Statistical results are stated as a bare number without saying what they mean geographically, missing the link back to the theory or model the fieldwork was testing.

Accepted Answer

After any calculation, add one sentence connecting the result to the geographical theory it supports or challenges. A correlation coefficient on its own earns fewer marks than one that is explained.

Question 8

Risk assessment answers confuse avoidance strategies, the preventative steps taken before fieldwork, with contingency planning, the actions taken if an accident happens anyway.

Accepted Answer

Keep the two in separate sentences: avoidance comes before the incident, contingency comes after it. Name at least one example of each when a question asks for both.

ฉบับ	เวลา	คะแนน	จำนวนข้อ	น้ำหนักคะแนน	ประเภทคำถาม
AS 1: Physical Geography	1ชม. 15นาที	75	5	36%	Section A: Compulsory Short Structured Questions, Section B: Extended Writing (choose 2 of 3)
AS 2: Human Geography	1ชม. 15นาที	75	5	36%	Section A: Compulsory Short Structured Questions, Section B: Extended Writing (choose 2 of 3)
AS 3: Fieldwork	1ชม.	60	13	28%	Short Answer (Planning and Risk Assessment), Extended Response (Primary Data Collection), Quantitative Analysis and Significance Interpretation, Extended Response (Geographical Reasoning and Theory Link), Short Answer (Fieldwork Extension and Evaluation), Apparatus and Methodology Analysis, Spatial and Statistical Calculation and Hypothesis Testing, Applied Geographical Management Explanation, Sampling Theory Definition, Descriptive Statistics Calculation, Cartographical Key and Choropleth Map Completion, Evaluation of Cartographic or Presentation Technique

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