What Makes Us More Likely to Conform
Asch didn't stop there - he tweaked his experiment to figure out exactly what factors make conformity more likely, and the results are fascinating.
Group size matters, but not in the way you might expect. Conformity increases with larger groups but only up to about 4 people - after that, it plateaus. Researchers think we start suspecting something dodgy is going on if too many people agree. Unanimity is absolutely crucial - if even one person breaks ranks and gives a different answer, conformity drops dramatically.
Task difficulty also plays a huge role. When Asch made the lines harder to distinguish, conformity shot up because participants genuinely looked to others for help. This shows ISI in action - when we're uncertain, we're much more likely to follow the crowd.
The Stanford Prison Experiment took social influence to extreme levels. Zimbardo converted a university basement into a mock prison and randomly assigned students to be guards or prisoners. Within hours, both groups had completely absorbed their roles - guards became aggressive and brutal, whilst prisoners became submissive and institutionalised.
Reality Check: The experiment had to be stopped early because the role-playing became too realistic and psychologically damaging.