"Enhanced Credibility / Reliability"

I'm typing all this from my head, as according to what I remember from SS lesson today. So, if there's any mistakes here, you know I have early symptoms of Alzheimer's'.

Cambridge often believes that

• a source which describes the opinion of a person against his own organisation / nation / group's has "ENHANCED CREDIBILITY".

However, this is only true when

• The person is in fact in that organisation group.
• The person is opposing the trend / typical point of view of his group. Meaning: If the person is supportive of a new policy introduced by his country's government, even if it's factual, the source CANNOT be said to have 'enhanced credibility'.

Of course, questions related to 'enhanced credibility' have lower chances of appearing than the core skills. So, in the meantime, focus on other SBQ skills. Inference, Comparison, Utility, Reliability.