This study investigates potential bias that may arise when surveys include question items for which multiple units are elicited. Examples of such items include questions about experiences with multiple health centers, comparison of different products, or the solicitation of egocentric network data. The larger the number of items asked about each…

Questionnaire refinement and a process for selecting items for elimination are important tools for survey developers. One of the major obstacles in questionnaire refinement and elimination in surveys lies in one's ability to adequately and appropriately reconstruct a survey. Often times, surveys can be long and strenuous on the respondent,…

Situations in which mailed questionnaires are most appropriate are identified. Population variables, characteristics of questionnaires, and social desirability variables are examined in depth. (Author)

Computerized answer sheets in mail surveys are examined for their effects on rate of return and response bias. Results of an empirical study of job satisfaction suggested that computerized answer sheets may be used in mail surveys without significantly affecting rate of return or producing response bias. (Author/JKS)

This study evaluated whether the addition of a writing section to the SAT Reasoning Test™ (referred to as the SAT® in this study) would impact test-taker performance because of fatigue caused by increased test length. The study also investigated test-takers' subjective feelings of fatigue. Ninety-seven test-takers were randomly assigned to three…