Wainwright Ch 2 - Test 1 PT 2

Question 1

What is a sensitive parameter?

Answer 1

shows a significant change in error with a change in its value

Question 2

What should you do when you identify a sensitive parameter?

Answer 2

Study it further

Communicate to stakeholder that it is sensitive

Question 2

Bottom-up approach to modeling

Answer 2

put pieces together to understand interactions/whole system

Question 2

Top-down approach to modeling

Answer 2

start with conceptualizing the whole system then split it into manageable pieces to understand them

Question 3

Sensitivity analysis

Answer 3

Understanding how parameters change the output (identifying sensitive parameters for further study)

Question 4

Insensitive parameter

Answer 4

doesn’t impact the model output very much

Question 5

1st benefit of sensitivity analysis

Answer 5

checks model logic/robustness

Question 6

2nd benefit of sensitivity analysis

Answer 6

defines importance of model parameters

Question 7

What can you conclude if multiple parameters are insensitive?

Answer 7

there are too many parameters and you should simplify model

Question 8

1st way to approach a sensitivity analysis

Answer 8

after model coding

can check model logic/define importance of parameters

Question 9

2nd way to approach sensitivity analysis

Answer 9

after model is fully parameterized

understand full impact of parameters on the model

Question 10

3 uses of sensitivity analysis

Answer 10

1. understand behavior of model/parameters
2. understand parts/whole of model
3. verify the model