fieldwork strategies

Question 1

systematic sampling

Answer 1

effectiveness: - quick -easy
ineffective: -easy to miss anomalies

Question 2

random sampling

Answer 2

effectiveness: -not biased -easy to carry out
ineffectiveness: -sampling may not be representative -difficult to obtain fair experiment (respondents skewed towards certain group)

Question 3

stratified sampling

Answer 3

effectiveness: -overcomes missing variation problem -not biased
ineffectiveness: -human investigation (age group) -difficult to obtain background data of each group

Question 4

sketching

Answer 4

effectiveness: -observe surroundings in details -first hand observation - reference
ineffectiveness: -time-consuming -dependent on weather

Question 5

bipolar environmental assessment

Answer 5

effectiveness: -inexpensive -compare w/ other factors
ineffectiveness: -subjective –> individual interpretation –> unreliable & not representative of entire area

Question 6

surveys/interviews

Answer 6

effectiveness: inexpensive -custom tailored questions
ineffectiveness: time-consuming (conducting) and tedious (collating results)

Question 7

pedestrian count

Answer 7

effectiveness: -easy to collate data -inexpensive
ineffectiveness: -inaccurate (human error when counting) -not in-depth (results differ due to time)

Question 8

photographs

Answer 8

effectiveness: fast and easy to analyse
ineffectiveness: tedious (analysing) and cannot evaluate exact figures