This paper aims to treat the problems of adaptation to society, especially to the primary school groups-which is the first place where one has to adapt oneself-and to find the cause of considerable differences in adaptation among primary schoolchildren. We carried out sociometrical paper test for 270 children of the fourth year grade of one primary school.
The degree with which one belongs to a group, that is to say, social status, was determined by T. B. Lemann and R. L. Solomon's method. As there are some doubts as to the adequacy of this sociometrical test, we examined its results and found this to be quite efficient.
Difference in children's family conditions is one cause difference in their ways of adaptation. In our study these relationship were discussed. The family conditions considered in this study are as follows:
(1) Family occupatioin
(2) Parents' educational background
(3) Number of family members
(4) Number of brothers and sisters
(5) Birth order
Relationships between the above-mentioned five factors and the children's social status were analyzed. As a result we can point out that there exist relationships between the following:
1. Social status and family occupation or parents' educational background (abstention ratio below 5%).
2. Social status and the number of brothers and sisters (abstention ratio blew 10%) There is no relationship between social status and family members or birth order.
The conclusions are:
1. The higher the family occupation and parents' educational background, the higher the children's social status.
2. Children with two brothers and sisters are most fit for group adaptation.
3. Lower social status is related to having more than three brothers and sisters.
4. Children with one brother or sister or without any have difficulties in coming up to the highest social status.