3. Data Analysis
• Initially DESCRIBE the
relationship in your data
against your hypothesis. What
is the correlation?
• EXPLAIN the reason for this
relationship. Relate to theory
that you have already
researched.
Site
Channel
Gradient
1
2
3
4
5
6
7
8
9
10
11
12
22.00
9.00
4.00
5.00
1.00
2.00
4.50
4.50
1.50
1.50
12.00
1.50
Fig. 3.6
4. Data Analysis
DESCRIBE
Gradient of the Lung Hang River as you go downstream
25.00
22.00
LEGEND
20.00
Gradient (°)
Upper Course
15.00
Middle Course
12.00
10.00
Lower Course
9.00
5.00
5.00
4.50
4.00
4.50
2.00
1.50
1.00
1.50
9
10
1.50
0.00
1
2
3
4
5
6
7
Sites
Fig 3.5
8
11
12
EXPLAIN
5.
6. Data Analysis
• Were there any ANOMALIES in my data collection?
• Were there any LIMITATIONS in my data collection.
LEGEND
Gradient of the Lung Hang River as you go downstream
Upper Course
25.00
22.00
Middle Course
Gradient (°)
20.00
Lower Course
15.00
12.00
9.00
10.00
4.00
5.00
5.00
4.50
1.00
4.50
2.00
1.50
1.50
9
10
1.50
0.00
1
Fig 3.5
2
3
4
5
6
7
Sites
8
11
12
7. Language of Data Analysis
Therefore…..
This shows that…..
This may be explained by…..
This indicates that….. This was expected…
Because…..
However……
This suggests that….
In comparison to…..
Write always in the 3rd Person
8. Analysis against other primary data
Average Channel Velocity against Channel Gradient downstream
25
0.30
0.25
20
15
0.15
10
0.10
5
0.05
0
0.00
1
2
3
4
5
6
7
8
9
10
11
Sites
Channel Gradient
Average Velocity
Linear (Channel Gradient)
Linear (Average Velocity )
12
Velocity m/s
Gradient (°)
0.20
10. Data Analysis Checklist
Analysis and conclusions
I have described what the data shows
I have explained why the data shows this
I have linked my explanations to geographical theory
I have made links between the various results
I have referred to the figure numbers when describing the
data
I have described and explained anomalies in the data
I have given an overall conclusion to the study and
answered the initial questions
Done
11. Now its your turn!
In groups of 4 write the Data Analysis for the below
hypothesis.
Channel size or Cross Sectional area will increase with
distance downstream.
REMEMBER: For the controlled assessment you will only be
allowed to use bullet point notes to assist you in writing the
data analysis.
