A lengthy questionnaire was mailed to all known Jewish males domiciled in St. Paul, aged 22-29 inclusive. The same questionnaire was also sent to all fathers of these men who were residents of this community. A total of 183 completed questionnaires were returned by the 22-29 year-old respondents; a total of 119 "fathers" filled out and returned their questionnaires.
The totals represented approximately two-thirds of the known members of each category.
Report notes that there were no important differences between respondents and non-respondents