students of public opinion are fast coining to the realization that, relatively speaking, too much attention has been directed toward sample design, and too little toward question design … differences in question design often bring results which show far greater variation than those normally found by different sampling techniques …

While great strides have been made in improved sampling design and technique – and electronic data processing has given us almost immediate access to the survey findings themselves – there has not been a comparable amount of progress in perfecting question or questionnaire design.

At the time this study was designed, relatively few reports of empirically based research into the understanding of survey questions had been published. Since the appearance of the present report in mimeograph form, very little else has appeared. It is to nobody's credit that anything so important to survey research should have been so neglected.