The extended archival search could have been extended to include the archives of the Israel Institute of Applied Social Research (later known as the Louis Guttman
Institute), a notable pioneer organization which carried out numerous surveys among immigrants during the period reported on in the book.
, RPPTL chair, said, "Our profession is uniquely qualified to help identify and meet those needs [of children].
We chose to use a statistical package based on the work of Louis Guttman
. The structure of the data from the study is presented through a data analysis technique known as smallest space analysis (SSA).(2) SSA is a subset of the broad family of data analysis called multidimensional scaling that portrays the data spatially so that they can be easily read (Young 1987).