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Haas, David F.; Kraft, Donald H. – Information Processing and Management, 1984
This paper examines representative research in information science and compares its designs to an abstract ideal of the experimental research design. Threats to validity of conclusions are highlighted, including history, maturation, testing, instrumentation, statistical regression, selection biases, experimental mortality, and selection-maturation…
Descriptors: Information Science, Models, Research Design, Research Methodology

Zunde, Pranas – Information Processing and Management, 1981
The problem of modeling information systems is studied with a focus on predictability. Syntactic, semantic, and pragmatic criteria are discussed, and 11 references are cited. (Author/BK)
Descriptors: Information Systems, Models, Predictive Measurement, Predictive Validity