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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Comparing the correctness of classical test theory and item response theory in evaluating the consistency and accurancy of student proficiency classifications

Gundula, Augustine M Unknown Date
No description available.
12

The British historical film, 1930-1990

Quinn, James Mark Vaughan January 2000 (has links)
This thesis aims to understand the ways in which the historical film has vexed its many critics, and in doing so will look beyond its perceived inadequacies to provide a new appreciation of its character, appeal, f unction and development. I have attempted to achieve these goals through a substantial generic study of the British historical film, utilizing notions of myth and ideas derived from reception studies. In terms of overall approach, this project is an example of what David Bordwell has called 'middle-level research', applying theory to a problem-driven, in-depth, empirical investigation. In following the precepts of middle-level research, it is an additional aim of my thesis to contribute to theoretical and methodological debates surrounding the writing of film history and the study of film genre. In chapter one, I review the literature which addresses questions of historical film and film history, and in chapter two I discuss the various ways in which a generic consideration can be conducted, with particular reference to the work of Rick Altman and the idea of genre as mythic-ritual. Beginning in 1930, after which date a coherent genre begins to emerge, I apply the approach expounded in chapters one and two to a wide range of primary sources for British cinema, including Kine Weekly, Sight and Sound, the memoir, the pressbook, and a number of audience surveys. Ile result, in chapters three and four, is an original overview of the British historical film genre in the period until 1980. Chapter five then situates the British historical film in relation to the genres (both British and American) which lie adjacent to it, and chapter six examines the genre and its history in the 1980s, through detailed case-studies of Lady Jane, Chariots of Fire and Henry V. Finally, my conclusions are worked out by setting the genre as I have defined it in the context of two pertinent concepts - British national cinema and British national identity - and the discourses associated with them, in order to elicit key themes and issues. The main thrust of my argument is that recent work on 'the costume film', by Pam Cook, Sue Harper and others, has tended to distort the nature of the British historical film, ignoring generic distinctions made by those who produced and consumed the films in question. I hope that my analysis, and my archival research in particular, will lay a foundation for a clearer and fuller future understanding of films which represent the past.
13

The Effect of Introspection and Verbalization on the Confidence-Accuracy Correlation

Villalba, Daniella 09 January 2012 (has links)
The present study examined the effect of introspection and verbalization on the confidence-accuracy correlation. Recent research has likened the process of eyewitness confidence assessment to a process of attitude formation. Following this analogy, it was hypothesized that introspection would strengthen, while verbalization would weaken, the confidence-accuracy correlation. Participants viewed a mock crime, made a lineup identification and either introspected or verbalized reasons for their identification (or did neither) before assessing their confidence. Results revealed that while introspection failed to significantly improve the confidence-accuracy correlation, verbalization decreased the correlation. These findings provide further theoretical support for the conceptualization of eyewitness confidence formation as analogous to attitude formation. In addition, these findings suggest that there are other mechanisms that can have a detrimental influence on the confidence-accuracy correlation. On the basis of these findings it is recommended that eyewitnesses refrain from verbalizing information about their lineup identification prior to providing their confidence.
14

Effects of Dual Accountability and Purpose of Appraisal on Accuracy

Fredholm, Rachel Lynn 05 March 1999 (has links)
This study investigated the effects of accountability and purpose of appraisal on rating and behavioral accuracy. Subjects viewed a videotape of a lecture and were asked to rate the lecturer's performance. Accountability to the ratee (the GTA on the videotape) was held constant. Accountability to a supervisor (a faculty representative) was manipulated such that subjects in the no (supervisor) accountability condition anticipated a meeting with the GTA only; subjects in the weak (supervisor) accountability condition anticipated a meeting with the GTA as well as a supervisory review of the ratings; while subjects in the strong (supervisor) accountability condition were led to believe that they would have to meet with both the GTA and the faculty representative to explain their ratings. Additionally, participants were led to believe that the purpose of this appraisal was either to provide feedback for development or to make administrative decisions. Two-way ANOVAs were used to assess the effects of accountability and purpose of appraisal on rating accuracy (elevation accuracy, dimensional accuracy, leniency) and behavioral accuracy. Results indicated that (a) increased accountability to a supervisor led to greater elevation accuracy, (b) raters in the administrative purpose condition provided more lenient ratings than did raters in the developmental purpose condition , (c) behavioral accuracy increased with level of accountability (none, weak, strong) to a supervisor, (d) raters who believed that the purpose of appraisal was for development exhibited greater behavioral accuracy than did raters who believed that the purpose was to make administrative decisions. / Master of Science
15

Revisiting Rating Format Research: Computer-Based Rating Formats and Components of Accuracy

Parrill, Scott 10 June 1999 (has links)
Prior to 1980, most research on performance appraisal focused on rating formats. Since then, most performance appraisal research has focused on the internal processes of raters. This study redirects the focus back onto rating format with a critical eye towards rating accuracy. Ninety subjects read several hypothetical descriptions of teacher behavior and then rated the teachers on different dimensions of teaching performance using computer-based rating formats. It was found that rating format does affect some measures of rating accuracy. In addition, support was found for the viability of a new rating format. Graphic rating scales with no anchors received higher accuracy scores on certain measures of accuracy, higher ratings for liking of the rating format, higher levels of comfort with the rating format, and higher levels of interrater reliability than either BARS or graphic rating scales with numerical anchors. This study supports the ideas that rating format research should be reexamined with a focus on rating accuracy and that computer-based graphic scales with no anchors should be considered as an alternative to more traditional rating methods. / Master of Science
16

A Study on Manufacturing Errors and Positioning Accuracy of Curvic Couplings

Lin, Cheng-Ta 04 July 2000 (has links)
Curvic couplings have been widely applied in industry and almost can be seen in the index table. Following the development of the precision machine industry, except the manufacturing precision, the positioning accuracy is also concerned to meet the demands for curvic couplings. The aim of this thesis is to investigate on manufacturing errors and positioning accuracy of curvic couplings. Discuss the geometric and indexing characteristics of curvic couplings firstly. In the meantime, the new parameter tooth surface of curvic couplings is derived by tooth generating theory. Than, mathematical models are established to simulate curvic couplings at present that are manufactured by grinding machine with different setting errors. Secondly, the practical examples based on the effects of elemental error on the manufacturing error are investigated. Finally, an experimental apparatus is built to measure the actual positioning accuracy of curvic couplings at different input speeds.
17

Singing Voice Attractiveness / The Attractiveness of the Singing Voice in Women

Isenstein, Sari 11 1900 (has links)
Previous experiments have shown that voice pitch (the perception of fundamental frequency and/or corresponding harmonics) is positively associated with women’s voice attractiveness, however all of this research is on women’s speaking voices. Singing is important for the mating success of non-human animals, is cross-culturally universal in humans, and is highly sexualized in many cultures. Thus, singing could contribute to mating success and attraction in humans. First, we investigated whether previous findings, that high voice pitch when speaking predicts women’s voice attractiveness, extend to when women sing. We also examined whether pitch- and rhythm accuracy contribute to women’s singing voice attractiveness. Voice pitch was positively related to women’s singing voice attractiveness as judged by men more than when judged by women, and speaking voice attractiveness was positively related to singing voice attractiveness. Thus, men and women may be reacting to the same indicator of women’s underlying quality (i.e. voice pitch) in both women’s speaking and singing voices, differently. Men may be attracted to high pitch, whereas women may show a weaker relationship, as they tend to be more romantically jealous of women with high pitched voices. Pitch- and rhythm accuracy did not predict women’s singing voice attractiveness. This result can be interpreted in different ways. It could mean that women’s voice pitch may be more important in determining men’s perceptions of their singing voice attractiveness than is their singing ability, or our measures were ill suited to the task. Collectively, these results are the first to show that singing voices are more attractive than speaking voices, people with attractive speaking voices tend to have attractive singing voices, and that singing and speaking voices relate to the same underlying qualities. Thus, singing may be an indicator of mate value and could have played a role in the evolution of sex differences in the voice if our ancestors had similar preferences. / Thesis / Master of Science (MSc)
18

FROM 0.5% TO 0.05%: ACHIEVING NEW LEVELS OF SENSOR ACCURACY IN AN AIRBORNE ENVIRONMENT

Sweeney, Paul 10 1900 (has links)
International Telemetering Conference Proceedings / October 18-21, 2004 / Town & Country Resort, San Diego, California / With recent improvements in data acquisition technology, it is now possible to use an FTI data acquisition system to measure analog signals with a total error from all sources of less than 0.05% - over an extended temperature range - and at high sample rates. This accuracy is better than one count of an old 10-bit system and includes non-linearities, initial errors (in gain, offset and excitation) and drift errors, simplifying the task of interpreting data acquisition system performance specifications. This paper looks at some practical steps taken to achieve this accuracy, from a hardware design and signal processing perspective. This leads to a discussion of implications for the FTI system designer, including: sensor and wiring specifications, sample rate, filtering specifications, and a discussion of implications for the data processing engineers.
19

Accuracy of remotely sensing classification of agricultural crops : a comparative study

Vieira, Carlos Antonio Oliveira January 2000 (has links)
No description available.
20

Etnicitet och kön :  Påverkar grupptillhörighet bedömningar av korrekthet i centrala meningar från ett vittnesmål?

Bergvall, Sylvia January 2005 (has links)
Syftet med denna studie var att studera möjligheten att bedöma korrekthet i vittnens utsagor beroende av deltagarnas grupptillhörighet. I studien ingick 120 deltagare som antingen fick se en film med vittnesmål från fyra vittnen med enstaka centrala meningar eller läsa en text med samma meningar. De viktigaste mätningarna i denna studie gjordes efter signal detection theory (SDT). Resultaten visade att deltagarna inte skattade mycket över slumpnivå och ofta till och med under slumpnivå i sina bedömningar. I en hopslagning av betingelserna (text/film) visade analyserna att män generellt var signifikant sämre än kvinnorna på att bedöma vittnesmål, men att kvinnorna gör fler falska alarm än männen i bedömningen av textversionen.  De funna könsskillnaderna i hur vittnesmål bedöms diskuterades.

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