evaluate
To judge how well a text achieves its purpose, using criteria and evidence.
criteria
The standards used to judge something.
believable
Consistent with what a text has set up, with motivated characters and events.
motivated
Having a clear reason, set up earlier in the story.
authority
Who created a source and whether they have the knowledge to be trusted.
currency
How up to date a source is.
qualified judgement
An opinion that acknowledges limits or weaknesses (for example using although or mostly).
coincidence
A lucky chance event; too many weaken believability.