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Quantitative Methodologies (quantitative + methodology)
Selected AbstractsHow undergraduate clinical learning climates differ: a multi-method case studyMEDICAL EDUCATION, Issue 10 2008Klarke Boor Context, The clinical learning climate affects undergraduate medical students' behaviour, satisfaction and success. Most studies predominantly describe aspects of the clinical learning climate using quantitative methodologies, such as questionnaires. This study aimed to illuminate medical students' perceptions of the clinical learning climate, and which factors and their interactions explain differences in clinical learning climates. Methods, We carried out a multi-method case study. Twelve departments of obstetrics and gynaecology distributed the Postgraduate Hospital Educational Environment Measure (PHEEM), a reliable questionnaire measuring the clinical learning environment, among medical students. After analysis (using anova and post hoc tests), 14 medical students from the highest- and lowest-scoring departments participated in semi-structured interviews. We analysed the transcribed recordings using a content analysis approach. Researchers agreed on coding and an expert group reached consensus on the themes of the analysis. Results, We found a significant difference between departments in PHEEM scores. The interviews indicated that department and medical student characteristics determine the clinical learning climate. For departments, ,legitimacy', ,clerkship arrangements' and ,focus on personal development' were the main themes. For medical students, ,initial initiatives', ,continuing development' and ,clerkship fatigue' were the principal themes. The amount and nature of participation played a central role in all themes. Conclusions, Differences between clinical learning climates appear to be related to differing approaches to participation among departments. Participation depends on characteristics of both departments and students, and the interactions among them. The outcomes give valuable clues to how a favourable clinical learning climate is shaped. [source] Willingness to Communicate in the Second Language: Understanding the Decision to Speak as a Volitional ProcessMODERN LANGUAGE JOURNAL, Issue 4 2007PETER D. MACINTYRE Previous research has devoted a great deal of attention to describing the long-term patterns and relationships among trait-level or situation-specific variables. The present discussion extracts kernels of wisdom, based on the literatures on language anxiety and language learning motivation, that are used to frame the argument that choosing to initiate communication at a particular moment in time can be conceptualized as a volitional (freely chosen) process. The result is a degree of willingness to communicate (WTC) with the potential to rise and fall rapidly as the situation changes. Previous research based on both qualitative and quantitative methodologies is described that demonstrates the complexity of the processes involved in creating WTC. It is argued that methodologies must be adapted to focus upon the dynamic process of choosing to initiate or avoid second language communication when the opportunity arises. [source] An examination of communication behaviors as mediators in individual-level interorganizational exchangesPSYCHOLOGY & MARKETING, Issue 1 2006Chickery J. Kasouf This research attempts to address some of the gaps in our understanding of individual-level interorganizational exchanges. To this end, a conceptual framework that integrates cooperative norms, communication behaviors, and perceived problem-solving efficacy is developed. Qualitative and quantitative methodologies were employed to explore relevance and significance of proposed constructs and relationships. Findings support the viability of constructs and proposed relationships. Specifically, communication behaviors were found to mediate the relationship between cooperative norms and problem-solving confidence to resolve conflict. These results hold implications for future research and management practice. © 2006 Wiley Periodicals, Inc. [source] Presbycusis: A Human Temporal Bone Study of Individuals With Downward Sloping Audiometric Patterns of Hearing Loss and Review of the LiteratureTHE LARYNGOSCOPE, Issue S112 2006Erik G. Nelson MD Abstract Objective: The purpose of this retrospective case review was to identify patterns of cochlear element degeneration in individuals with presbycusis exhibiting downward sloping audiometric patterns of hearing loss and to correlate these findings with those reported in the literature to clarify conflicting concepts regarding the association between hearing loss and morphologic abnormalities. Methods: Archival human temporal bones from individuals with presbycusis were selected on the basis of strict audiometric criteria for downward-sloping audiometric thresholds. Twenty-one temporal bones that met these criteria were identified and compared with 10 temporal bones from individuals with normal hearing. The stria vascularis volumes, spiral ganglion cell populations, inner hair cells, and outer hair cells were quantitatively evaluated. The relationship between the severity of hearing loss and the degeneration of cochlear elements was analyzed using univariate linear regression models. Results: Outer hair cell loss and ganglion cell loss was observed in all individuals with presbycusis. Inner hair cell loss was observed in 18 of the 21 individuals with presbycusis and stria vascularis loss was observed in 10 of the 21 individuals with presbycusis. The extent of degeneration of all four of the cochlear elements evaluated was highly associated with the severity of hearing loss based on audiometric thresholds at 8,000 Hz and the pure-tone average at 500, 1,000, and 2,000 Hz. The extent of ganglion cell degeneration was associated with the slope of the audiogram. Conclusions: Individuals with downward-sloping audiometric patterns of presbycusis exhibit degeneration of the stria vascularis, spiral ganglion cells, inner hair cells, and outer hair cells that is associated with the severity of hearing loss. This association has not been previously reported in studies that did not use quantitative methodologies for evaluating the cochlear elements and strict audiometric criteria for selecting cases. [source] The effects of cannabis abuse on the symptoms of schizophrenia: Patient perspectivesINTERNATIONAL JOURNAL OF MENTAL HEALTH NURSING, Issue 4 2008William F. Costain ABSTRACT:, This study explored explanatory models used by individuals with schizophrenia in relation to continuing cannabis abuse. Cannabis is known to exacerbate positive symptoms, compound the effects of negative symptoms, and lead to relapse, having a negative effect upon quality of life. If this is so, why would people choose to continue the drug use? Most previous studies exploring this phenomenon have used quantitative methodology where the questions asked have been preset by the researchers and the subjective experience of the patient has been minimized. Qualitative methodology was utilized in this study in order to give voice to the patients' perspectives, and contribute to the knowledge of the frameworks of meanings employed by patients. The majority of participants in this study did not perceive that they had a mental illness and they held strong beliefs regarding the usefulness of cannabis. They gave explanations for their continuing cannabis use that expanded the understanding from previous studies. These included that they sought the drug effects of cannabis use for clarity of voices, control of symptoms, to feel normal, perceived improvement in cognitive function, reduced psychological pain and increased energy. These beliefs may influence a person's adherence with treatment and their future cannabis use. This research has implications for clinical practice as clinicians may lack insight into the importance of the phenomenological beliefs of a person with schizophrenia. This lack of insight by the clinician into the phenomenological beliefs may impact on the development of a therapeutic relationship. [source] Meta-Regression Analysis: A Quantitative Method of Literature SurveysJOURNAL OF ECONOMIC SURVEYS, Issue 3 2005T. D. Stanley Abstract., Pedagogically, literature reviews are instrumental. They summarize the large literature written on a particular topic, give coherence to the complex, often disparate, views expressed about an issue, and serve as a springboard for new ideas. However, literature surveys rarely establish anything approximating unanimous consensus. Ironically, this is just as true for the empirical economic literature. To harmonize this dissonance, we offer a quantitative methodology for reviewing the empirical economic literature. Meta-regression analysis (MRA) is the regression analysis of regression analyses. MRA tends to objectify the review process. It studies the processes that produce empirical economic results as though they were any other social scientific phenomenon. MRA provides a framework for replication and offers a sensitivity analysis for model specification. In this brief essay, we propose a new method of reviewing economic literature, MRA, and discuss its potential. [source] A Diachronic Coherence Model for Language Program EvaluationLANGUAGE LEARNING, Issue 1 2003Steven J. Ross Language programs often generate complex date providing a rich source of comparative information about changes in curriculum policies and learning. Historical program archives often reveal how curricula and assessment methods evolve to include increasingly varied components of achievment. This article presents a novel quantitative methodology for assessing the construct of "program coherence" in an English as a Foreign Language context. Revolving panel studies demonstrate criteria for evaluating program coherence and its influence on proficiency gains. Thirty,three panel cohorts are included in a series of six 1,year longitudinal studies relating program,internal assement of achievement to program,external measures of language proficiency. Differences in panel coherence are analyzed in a hierarchical model that gauges the influence of coherence independently individual differences at the learner level. [source] Justice Without Borders: Human Rights Cases in U.S. CourtsLAW & POLICY, Issue 1 2006JEFFREY DAVIS In 1980 the Second Circuit Court of Appeals broke with years of legal tradition and ruled that human rights victims could sue their oppressors in federal court,even if the alleged violations occurred outside the country. This court based the extension of its authority on a provision of the 1789 Judiciary Act now referred to as the Alien Tort Claims Act (ATCA). ATCA cases present a unique opportunity to study judicial behavior in the face of separation of powers interests, traditions of judicial restraint, sovereign immunity defenses, and an active internationalist movement to extend human rights guarantees worldwide. Combining legal analysis with quantitative methodology, I find that U.S. federal courts are slowly accepting an internationalist approach to human rights, and that interest groups are largely driving this transformation. Sovereignty concerns and judicial ideology are not conditioning case outcomes, but party resources and separation of powers issues are. [source] | ||||||||||||||||