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Human Factors Psychology Commons

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2009

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Articles 1 - 5 of 5

Full-Text Articles in Human Factors Psychology

An Empirical Methodology For Engineering Human Systems Integration, Nicholas S. Hardman Dec 2009

An Empirical Methodology For Engineering Human Systems Integration, Nicholas S. Hardman

Theses and Dissertations

The systems engineering technical processes are not sufficiently supported by methods and tools that quantitatively integrate human considerations into early system design. Because of this, engineers must often rely on qualitative judgments or delay critical decisions until late in the system lifecycle. Studies reveal that this is likely to result in cost, schedule, and performance consequences. This dissertation presents a methodology to improve the application of systems engineering technical processes for design. This methodology is mathematically rigorous, is grounded in relevant theory, and applies extant human subjects data to critical systems development challenges. The methodology is expressed in four methods …


Depressive Symptoms And Marital Satisfaction In The Context Of Chronic Disease: A Longitudinal Dyadic Analysis, Rachel Pruchno, Maureen Wilson-Genderson, Francine P Cartwright Aug 2009

Depressive Symptoms And Marital Satisfaction In The Context Of Chronic Disease: A Longitudinal Dyadic Analysis, Rachel Pruchno, Maureen Wilson-Genderson, Francine P Cartwright

Rowan-Virtua School of Osteopathic Medicine Faculty Scholarship

These analyses examined the longitudinal relationships between depressive symptoms and marital satisfaction over a 2-year period as experienced by 315 patients with end-stage renal disease and their spouses. Using multilevel modeling, the authors examined both individual and cross-partner effects of depressive symptoms and marital satisfaction on patients and spouses, testing bidirectional causality. Results indicate that mean and time-varying depressive symptoms of both patients and spouses were associated with their own marital satisfaction. Although mean marital satisfaction was associated with own depressive symptoms for both patients and spouses, time-varying marital satisfaction did not affect depressive symptoms for either patients or spouses. …


A Pilot Study Of Bibliotherapy To Reduce Alcohol Problems Among Patients In A Hospital Trauma Center, Paul Amrhein, Timothy Apodaca, William R. Miller, Carol R. Schermer Jul 2009

A Pilot Study Of Bibliotherapy To Reduce Alcohol Problems Among Patients In A Hospital Trauma Center, Paul Amrhein, Timothy Apodaca, William R. Miller, Carol R. Schermer

Department of Psychology Faculty Scholarship and Creative Works

Because alcohol use plays a major role in many injuries that require hospital care, there is increasing interest in developing interventions to address alcohol problems among emergency department and trauma center patients. The aim of the current study was to extend past research on brief interventions by investigating the use of a self-help manual to treat problem drinkers in a hospital trauma center. Forty injured patients who were either intoxicated at the time of injury or screened positive for harmful drinking were randomly assigned to receive either a brief assessment and a self-help booklet with no more than 5 minutes …


Using Sunflower Plots And Classification Trees To Study Typeface Legibility, Edgar C. Merkle, Barbara S. Chaparro Jan 2009

Using Sunflower Plots And Classification Trees To Study Typeface Legibility, Edgar C. Merkle, Barbara S. Chaparro

Publications

This article describes the application of sunflower plots and classification trees to the study of onscreen typeface legibility. The two methods are useful for describing high-dimensional data in an intuitive manner, which is crucial for interacting with both the typographers who design the typefaces and the practitioners who must make decisions about which typeface to use for specific applications. Furthermore, classification trees help us make specific recommendations for how much of a character attribute is “enough” to make it legible. We present examples of sunflower plots and classification trees using data from a recent typeface legibility experiment, and we present …


Noninvasive Physiological Measures And Workload Transitions:An Investigation Of Thresholds Using Multiple Synchronized Sensors, Lee Sciarini Jan 2009

Noninvasive Physiological Measures And Workload Transitions:An Investigation Of Thresholds Using Multiple Synchronized Sensors, Lee Sciarini

Electronic Theses and Dissertations

The purpose of this study is to determine under what conditions multiple minimally intrusive physiological sensors can be used together and validly applied for use in areas which rely on adaptive systems including adaptive automation and augmented cognition. Specifically, this dissertation investigated the physiological transitions of operator state caused by changes in the level of taskload. Three questions were evaluated including (1) Do differences exist between physiological indicators when examined between levels of difficulty? (2) Are differences of physiological indicators (which may exist) between difficulty levels affected by spatial ability? (3) Which physiological indicators (if any) account for variation in …