scenario, sensitivity, stress testing

Thank you in advance!!

On the part of measures of risk they Schweser says this:

  • Stress testing: examines the effects of a specific (usually extreme) change in a key variable (interest rate, f.e.). A change in a single input.
  • Scenario analysis: “what if” analysis of expected loss but incorporates changes in multiple inputs.

In Ratio analysis they say this:

sensitivity analysis: “what if questions” one variable

Scenario analysis: based on specific scenarios, we will yield a range of value for specific elements

THEN, they mixed up right, I assume the following:

scenario analysis is multivariate, right?

sensitivity: one variable, what if questions

stress testing: also multivariate but I dont know the difference between it and scenario