+ Survival Analysis Workshop

Question 1

Crossed factorial experiment:

Answer 1

• Examining two different factors (in WS: DR vs insulin-like signalling)
• Are the effects on survival independent? (null)
• If the effects are independent, survival effects expected to be additive

Question 2

How can time of onset of aging be estimated by eye?

Answer 2

• Looking for when mortality begins to accelerate on the survival plot
• Roughly at what point does the straight line become a curve