Converse to attacking a person or group to discredit their argument, manipulating content takes a person’s argument and twists it into something entirely different or to manipulate your argument to make it appear more persuasive.
When you cherry pick evidence which confirms your existing beliefs, but ignore all evidence to the contrary as erroneous or irrelevant.
Example: Paying more attention to the 5 studies which show a link between vaccines and autism than the 1,000+ studies which disprove any link.
The deliberate neglect of relevant evidence/information which counters your own argument.
Example: “Iraq has weapons of mass destruction and so we should invade.” This ignores the reports that show no evidence of such weapons.
Using an unrepresentative sample of people to bolster your argument.
Example: “75% of people would vote for Bernie Sanders” Based on a poll only of students.
Ad Hoc Rescue
Trying to protect a belief or idea by revising the argument each time a flaw is found.
Example: “Apart from the freedom to live in any EU country, the millions of jobs it sustains, increased security, strong business links, lower import costs and greater political influence, what has the European Union ever done for us?”
Positioning two options as the only two options and deliberately hiding or suppressing alternatives.
Example: “You have to choose between the Republicans or the Democrats.”
By describing a situation in detail, even if that situation is rare or unlikely in order to convince that it is more of a problem that it truly is.
Example: “After gay marriage was legalised, school libraries now stock same-sex literature. This means that primary school children are exposed to gay fairy tales and books which promote a gay lifestyle”.
Intentional introduction of irrelevant material to distract from the argument and alter the conclusion.
Example: “The Prime Minister doesn’t need to disclose his tax returns. After all, there are corporations who have billions of pounds in unpaid tax.”
The assumption that a single small step in one direction will lead to an inevitable chain of increasingly worse events.
Example: “If we introduce stricter gun control, the government will be more controlling and we’ll be living in a dystopian country”.
Suggesting a claim or argument that is impossible to prove false, purely because there is no way to check it’s validity.
Example: “He is a Prophet and speaks the message of God.”