# Geo skills

• Created by: k-hardy
• Created on: 12-04-16 13:59
What are the first 3 stages of choosing a geographical investigation?
1) Identify a suitable question and hypothesis. 2) development and plan approriate strategy for conducting the invesigation. 3) Collect and record apporiate data
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What the last 3 stages of choosing a geographical investigation?
4) Present the data collect in apporriate forms, 5) analyse and interpret the data. 6) present a summary of the findings and an evaluation
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What is random sampling with 2 pros and 2 cons?
Chosen at random, everyone/thing has the same chance of being chosen. Pros: unbias, easy. Cons: could end up with unrelevant sites, could miss out data
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What is linear sampling with 2 pros and 2 cons?
A line is drawn on a map, samples taken along the line or at certain points. Pros: Unbias, easy to do. Cons: not representative, could miss data out
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What is systematic sampling with 2 pros and 2 cons?
Sample every nth number. Pros: easy to do, easy to find patterns. Cons: possible bias, could pick areas that relevant
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What is stratified sampling with 2 pros and 2 cons?
Sites are put into sampler groups. Pros: easy to do, organised. Cons: requires prior knowledge, time consimung.
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What is pragmatic sampling with 2 pros and 2 cons?
Areas chosen based on saftey and relvance. Pros: safe, gets relevant data. Cons: ciykd niss out data, limits locations
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What is area sampling with 2 pros and 2 cons?
Smaller sites are chosen within a larger area in order to gather more data. Pros: less to do, fast. Cons: miss out data, limited to those areas.
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What is point sampling with 2 pros and 2 cons?
Grid is drawn on a map and a random number generator is used to bring up coodinates. Pros: unbias, easy to pick points. Cons: Miss out data, sites could be too wide spread
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What was the title of my investigation?
To what extent does the Bradshaw model follow the river Eea?
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What is a problem with using the bradshaw model for UK rivers?
Based on U.S rivers
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At what site was width the smallest and at what site was it the largest?
Site two with 1.18m and site 14 with 7.50m
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At what site was the river shallowest and at what site was it deepest?
Site 5, 0.06. Site 13 0.36m
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Where was wetted perimetre the largest and where was it the smallest?
Site 16 8.80m, site 2 1.30m
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Where was the river steepest and where was it the most flat?
Site 1 and 2 with 8 degreesm sites 9 and 13 with 0 degree elavation
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Where was the river fastest witht eh hydroprop and where was it the slowest?
Site 15 0.97 m/s site 4 with 0.09m/s
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Where was the river fastest with the hydrofloat and where was it the slowest?
Site 14 0.88m/s, site 6 0.10m/s
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What is the Mann Whitney U test used for?
Test difference between two medians
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What is spearmans rank used for?
Test signifance between two sets of data
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What is the Chi squared test used for?
Compares frequences of observed with what was expected
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What is the difference between how the data is ranked in Mann Whitney and Spearmans rank?
Mann Whitney ranks the 2 sets as one, spearmen's ranks them speratly?
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## Other cards in this set

### Card 2

#### Front

What the last 3 stages of choosing a geographical investigation?

#### Back

4) Present the data collect in apporriate forms, 5) analyse and interpret the data. 6) present a summary of the findings and an evaluation

### Card 3

#### Front

What is random sampling with 2 pros and 2 cons?

### Card 4

#### Front

What is linear sampling with 2 pros and 2 cons?

### Card 5

#### Front

What is systematic sampling with 2 pros and 2 cons?

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