抄録
While the multivariate statistical analysis has been applied to almost all fields which require some of statistical inferences, it has seldom been only to social statistical surveys, each of which always deals with many variates simultaneously, except the ratio estimate. In these years, the number of statistical surveys carried out by various agencies is steadily increasing, and items of a survey are also increasing in number and becoming complicated. Each of these facts may mean a steady increase of the load of surveyees who would not find any benefit directly from the survey, and may consequently raise the frequency of undesirable activities of surveyees. In these circumstances, it may be very necessary to reduce their load. The new method I have proposed in this paper aims at the reduction of the load of surveyees by allocating survey items partially to each surveyee through a plan such as BIB design in order to apply the multivariate statistical method for estimating parameters required.