Two types of Social Groups Social groups can be divided into primary groups and secondary groups based on the types of relationship the members have. In primary groups, the relationships between the members are emotional and personal. They support each other and share value systems. Thus, they are internally rewarded when it comes to the participation. Usually, the primary groups are small in number and last for a long period of time. On the other hand, secondary groups are more task-oriented and less personal. Usually there is no emotion involved and the group members need tangible rewards to continue participating the groups. These secondary groups can be large in number but easy to be broken. Almost every society has both primary and secondary groups. However, the degree of the society's development affects the ratio. Less developed countries tend to have stronger primary groups than secondary groups, and it's the opposite in more developed countries. This is because traveling, technology, and diverse lifestyle weaken primary groups. Although the effect of lossing primany groups is not clear yet, some suggest that detrimental lifestyle may be the result of lacking emotional support from primary groups.