Full context:   Although conformity pressures generally increase as the size of the majority increases, Asch's experiment in 1951 stated that increasing the size of the group will have no additional impact beyond a majority of size three. Brown and Byrne's 1997 study described a possible explanation that people may suspect collusion when the majority exceeds three or four. Gerard's 1968 study reported a linear relationship between the group size and conformity when the group size ranges from two to seven people. According to Latane's 1981 study, the number of the majority is one factor that influences the degree of conformity, and there are other factors like strength and immediacy.