WEBVTT

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As the research session begins, the participants are seated around a table.

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The person seated in the last position is the only real participant.

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All the others are accomplices or “confederates” of the experimenter.

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The experimenter, seated on the other side of the table, explains the instructions.

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On the first trial, the participants study the standard line, and then choose the comparison line (A, B, or C) that is the same length as the standard line.

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One at a time, the confederates call out “Line B”. The real participant agrees, so they have consensus on Trial 1.

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On the second trial, the answer is clearly Line A and all the participants choose Line A.

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So far, so good. All the participants are agreeing on the correct answer.

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But what will happen when the experimenter's accomplices begin calling out the wrong answer? You'll find out on the next screen.