Assessment
A challenging 10-dialogue test of where the fallacy is, if it is there at all.
Each set draws from a bank of 40 difficult six-turn dialogues. In every item, there is at most one fallacy or no fallacy at all. Your task is to decide whether the mistake is on the left, on the right, or nowhere, and whether it is formal or informal.
How this works
Each speaker gets three turns. Read the whole exchange before deciding. Some items are traps for overdiagnosis, so None is a real answer when the reasoning holds up.
Answer structure
Every 10-item set is balanced by design, with 2 items in each answer class.
Take the dialogue assessment
These items are deliberately subtle. They test whether you can locate a fallacy precisely, classify its type, and resist inventing one when the exchange is actually sound. Formal fallacies go wrong in the structure of the reasoning, while informal fallacies go wrong through relevance, evidence, wording, or framing.