Evaluation Review · 1990 · 25 citations · 5 references
EducationEducational LeadershipEducational TechnologyItem Response TheoryPsychometricsTest ConstructionDelphi StudiesFactor AnalysisItem AnalysisQuestionnaire DesignResearch PrioritizationTechnology AssessmentEducational Technology LeadershipPriority AssessmentPriority ElicitationSurvey PrioritizationSurvey-based Needs Assessment
In a Delphi study of research needs in educational technology, 89 recognized leaders in educational technology suggested 163 research needs. A small number of high-priority needs was identified using an adaptation of the Scree test, a method that is usually restricted to factor analysis. The results indicated that the Scree test was a useful analytic tool for survey results. Its use should be extended to other applications.
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The Scree Test For The Number Of Factors
Raymond B. Cattell · Multivariate Behavioral Research · 1966 · 13.5K citations
Social Sciences, Behavioral Sciences, Item Response Theory +12
An experimental study of group opinion
Norman C. Dalkey · Futures · 1969 · 756 citations