Fieldwork

Question 1

what are advantages primary data

Answer 1

know data is reliable and valid

collect data needed and as required

Question 2

what are disadvantages of primary data

Answer 2

time consuming

errors

limited sample size

Question 3

what are advantages of secondary data

Answer 3

• doesn’t take long
• accurate large samples
• valid if government

Question 4

what are disadvantages of secondary data

Answer 4

• unreliable
• over complicated
• not up to date
• no full understanding

Question 5

what are advantages of qualitative data

Answer 5

• productive in depth analysis

- specific themes

Question 6

what are disadvantages of qualitative data

Answer 6

• hard to analyse

- lack objectivity

Question 7

what are advantages of quantitative data

Answer 7

• analysed statistically

- graphical

Question 8

disadvantages of quantitive data

Answer 8

• lack of important detail

- lack validity

Question 9

what is random sampling

Answer 9

least biased, random value from sample taken

Question 10

systematic sampling

Answer 10

• choosing samples in regular way

Question 11

stratified sampling

Answer 11

• dividing samples in groups

Question 12

what is one advantage and one disadvantage of random sampling

Answer 12

can be used w large samples avoids bias

poor representation of overall population

Question 13

what is one advantage and one disadvantage of systematic sampling

Answer 13

straight forward better coverage

biased not equal chances of selection

Question 14

what is one advantage and one disadvantage of stratified sampling

Answer 14

used with random or systematic and flexible

hard to stratify questionnaire
hard to identify age of social background

Question 15

what are the three types of spatial sampling

Answer 15

point
quadrant
line

Question 16

how can collect information from public with its advantage

Answer 16

using a questionnaire asking opinions giving a wide range of views

Question 17

how can you identify business of area w a benefit

Answer 17

count of people over period of time

allowing you to compare busyness at different time

Question 18

how can you survey beach profile w benefit

Answer 18

using clinometer and two ranging poles record slope

allows you to see impact of processes on shape of land

Question 19

how can you measure impact of swash and backwash and transportation of sediment w a benefit

Answer 19

measure distance between points record time for floating object to travel between points providing a direction and speed of longshore drift

Question 20

how can you investigate the impact or erosion and deposition w benefit

Answer 20

measure width of river channel and depth at regular intervals

compare size and shape of river channels along course

Question 21

how can you measure sediment along a groyne

Answer 21

measure height of sediment at regular intervals and allows you to identify direction of longshore drift and impact on groyne profile and on beach

Question 22

how can you measure the velocity of a river w benefit

Answer 22

use a flow meter - allows accurate measurements

Question 23

how can you take environment quality survey w benefit

Answer 23

develop a bi-polar scale to review quality - compare locations against same factors

Question 24

when asked for advantage of disadvantages what method use

Answer 24

S kills required
E asy to understand
E quipment needed
Q uantative/qualitative in depth
C compareable 
A ccuracy
P erception
S subjective