This table represents an experiment in which you and I both have headaches. Explain what the selected part of the table means.
The column Asp Not corresponds to you taking an aspirin and me not taking an aspirin.
The subscripts 1 and 2 refer to your and my, respectively, outcomes - how our heads feel at the end of two hours.
In the square brackets we have the treatments - you took an aspirin and I did not.
The numbers indicate the "value" of each of our headaches.
Basic Concepts of Statistical Inference for Causal Effects in Experiments and Observational Studies Donald B. Rubin. P 6
ICS212 Fall 2022
This table represents an experiment in which you and I both have headaches. Explain what the selected part of the table means.
Basic Concepts of Statistical Inference for Causal Effects in Experiments and Observational Studies Donald B. Rubin. P 6
ICS212 Fall 2022
This table represents an experiment in which you and I both have headaches. How does the information in the green box indicate that SUTVA is violated?
The treatment effect for you when I take an aspirin is = Y1([Asp,Asp]) - Y1([Not,Asp]) = 0 - 75 = -75
But the treatment effect for you when I do not take an aspirin is
= Y1([Asp,Not]) - Y1([Not,Not]) = 50 - 100 = -50
The causal effect for you depends in some way on whether I get treatment or control. That violates first part of SUTVA.
Make up a story that might explain this peculiar situation.
Basic Concepts of Statistical Inference for Causal Effects in Experiments and Observational Studies Donald B. Rubin. P 6
ICS212 Fall 2022
This table represents an experiment in which you and I both have headaches. How does the information in the green box indicate that SUTVA is violated?
Make up a story that might explain this peculiar situation.
Basic Concepts of Statistical Inference for Causal Effects in Experiments and Observational Studies Donald B. Rubin. P 6
ICS212 Fall 2022
LP14:We Both Have Headaches Discussion
By Dan Ryan
