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Reliability of network measurements
Ferligoj, Anuška ; Hlebec, Valentina
The data of a (complete) social network can be collected by a survey. In orderto estimate the quality of a survey (e.g., reliability, validity) one canbe interested in different aspects of data ...quality, e.g., the quality of a single question, the quality of a single method, the overall quality of a composite of questions measured by one method, or the overall quality of a single question measured by several methods. In this paper the reliability of complete network measurements is studied. For this purpose student support relations among thirteen students of the Social Science Informatics second year class (1992/93) are measured with four different questions and three different scales. Cronbach's alpha and Armor's theta coefficient are used on vectorized relational matrices to estimate the overall reliability of the composite of four questions measuring support relations by one method. True score MTMM approach to measure reliability of a single question is also used.
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