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The present study reports a reliability generalization (RG) meta-analysis of subscale and total scale scores on the Web-administered LibQUAL+™protocol. Data were provided by 18,161 participants from 43 universities in the United States and Canada. Results indicate that score reliabilities were remarkably invariant across campuses and different user groups. [ABSTRACT FROM AUTHOR]

Unnumbered graphic rating scales theoretically can lead to greater score variance and thus greater score reliability. The use of Web-based graphic sliders overcomes the practical problems of administering graphic scales on paper measures: the excessive costs of scoring and excessive scoring errors arising from the tediousness of scoring done by hand. The study investigated whether graphic scales realize theoretically expected improved score reliability and how coarseness in slider scoring affects reliability. A large sample size (n = 4,407) and diverse respondent groups were employed so that more confidence could be invested in results. [ABSTRACT FROM AUTHOR]

Although Web-based surveys are increasing in popularity, very little research has been conducted on the psychometric implications of using different user interfaces for eliciting responses to survey items. The purpose of this study was to compare the latent structures of responses to two different user interface response formats in a Web-based survey. Two different coherent cut kinetics taxometric procedures--MAMBAC and L-mode factor analysis--were used to examine the latent structure of responses to a survey of library service quality using an unnumbered slider-bar user interface versus a radio-button user interface. Strong evidence was found for a pure dimensional latent structure of responses from both user interfaces, which replicated across both taxometric procedures and across multiple survey items. It is concluded that the slider-bar and radio-button user interfaces both yield similar latent structures of survey item responses. The implications of these findings for the construction of Web-based surveys are discussed. [ABSTRACT FROM AUTHOR]

Response representativeness is more important than response rate in survey research. However, response rate is important if it bears on representativeness. The present meta-analysis explores factors associated with higher response rates in electronic surveys reported in both published and unpublished research. The number of contacts, personalized contacts, and precontacts are the factors most associated with higher response rates in the Web studies that are analyzed. [ABSTRACT FROM AUTHOR]