Informal Fallacies: This quiz identifies all the informal fallacies in 10 Actual Official LSAT Preptests Volume V. Since many fallacies have more than one name, we have chosen the name used by Wikipedia for each fallacy.
[q multiple_choice=”true”] presents a situation in which only limited alternatives are considered, when in fact there is at least one additional option.
[c] Sampling bias
[f] No, that would involve some kind of survey error.
[c] Begging the question
[f] No, that would mean assuming what you are trying to prove.
[c*] False dilemma
[q multiple_choice=”true”] infers that something is true of the whole from the fact that it is true of some (or even every) part of the whole
[c*] Fallacy of Composition
[c] Argument from ignorance
[f] No, that would mean using a lack of proof as a way of proving something.
[c] May/Must Fallacy
[f] Wikipedia doesn’t know about this one–it is the error of saying something must be true just because it might be true.