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Full-Text Articles in Social and Behavioral Sciences
Effects Of Flat Panel Display Parameters Across Three Application Areas Upon Similarity Judgments, Novia Weiman
Effects Of Flat Panel Display Parameters Across Three Application Areas Upon Similarity Judgments, Novia Weiman
Dissertations and Theses
A human performance experiment was conducted to investigate pixel parameter requirements for three types of flat-panel display images: an alphanumeric character, an oscilloscope waveform, and a real-world image. Subjects performed similarity judgments between an extremely high-quality image and an image composed of different levels of anti-aliasing and pixel width-plus-pixel separation (pitch). It was found that the effect of pitch had greater influence on perceived image quality for the alphanumeric character and oscilloscope waveform than for the real-world image. The results of this research provide empirical evidence showing that the pixel pitch requirements for flat-panel systems that are used to display …
Beyond Difference Scores: Testing Models Of Speed Of Information-Processing Using Confirmatory Factor Analysis, Gary A. Uhland
Beyond Difference Scores: Testing Models Of Speed Of Information-Processing Using Confirmatory Factor Analysis, Gary A. Uhland
Dissertations and Theses
This study has two parts: Part I discusses the limitations of difference scores and exploratory factor analysis for representing speed of information-processing stages in the context of a reanalysis of a study by Vernon (1983). Vernon interpreted the differences between objectively measured reaction times on various simple cognitive tasks as components of speed of information processing. Correlations were calculated among these differences and subjected to exploratory factor analysis. The factors obtained from this analysis were interpreted by Vernon in terms of short-term and long-term memory processing constructs. The use of difference scores, however, implies an additive model allowance for random …