Chapter #8 - group processes: influence in social groups. As it turned out, the students quickly assumed these roles so much so that the researchers had to end the experiment after only 6 days. People got so far into their roles that their personal identities and sense of decency somehow were lost. How groups ifluence the behavior of individuals: simply being in the presence of other people can have a variety of effects on your behavior. Social facilitation: when the presence of others energizes us. It turned out that the individual cockroaches performed the task faster when they were in the presence of other roaches than when they were by themselves. Difficult tasks: what happens when the task is more difficult and done in the presence of others, when working on this more difficult task, the opposite pattern of results occurred. The presence of other people makes us more alter.