Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Barbara Reveals Underground Captivity
S1E6
·
The Survivors
To
Doctor exploits Dalek desperation for cure
S1E6
·
The Survivors
Why These Connect
The narrative assertion
"The Doctor's somber declaration that they will all die from radiation sickness motivates the Daleks to monitor them and reveal that they are also aware of the radiation."
About Causal Connections
A directly causes B. The first event sets forces in motion that produce the second. These are the load-bearing connections of plot—remove one and the story structure collapses.