Matching Items (3)

No Right Answer: A Feasibility Study of Essay Assessment with LDA

Description

Essay scoring is a difficult and contentious business. The problem is exacerbated when there are no “right” answers for the essay prompts. This research developed a simple toolset for essay

Essay scoring is a difficult and contentious business. The problem is exacerbated when there are no “right” answers for the essay prompts. This research developed a simple toolset for essay analysis by integrating a freely available Latent Dirichlet Allocation (LDA) implementation into a homegrown assessment assistant. The complexity of the essay assessment problem is demonstrated and illustrated with a representative collection of open-ended essays. This research also explores the use of “expert vectors” or “keyword essays” for maximizing the utility of LDA with small corpora. While, by itself, LDA appears insufficient for adequately scoring essays, it is quite capable of classifying responses to open-ended essay prompts and providing insight into the responses. This research also reports some trends that might be useful in scoring essays once more data is available. Some observations are made about these insights and a discussion of the use of LDA in qualitative assessment results in proposals that may assist other researchers in developing more complete essay assessment software.

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Investigations of the role of high-level cognitive skills in the text production process

Description

Writing is an intricate cognitive and social process that involves the production of texts for the purpose of conveying meaning to others. The importance of lower level cognitive skills and

Writing is an intricate cognitive and social process that involves the production of texts for the purpose of conveying meaning to others. The importance of lower level cognitive skills and language knowledge during this text production process has been well documented in the literature. However, the role of higher level skills (e.g., metacognition, strategy use, etc.) has been less strongly emphasized. This thesis proposal examines higher level cognitive skills in the context of persuasive essay writing. Specifically, two published manuscripts are presented, which both examine the role of higher level skills in the context of writing. The first manuscript investigates the role of metacognition in the writing process by examining the accuracy and characteristics of students' self-assessments of their essays. The second manuscript takes an individual differences approach and examines whether the higher level cognitive skills commonly associated with reading comprehension are also related to performance on writing tasks. Taken together, these manuscripts point towards a strong role of higher level skills in the writing process and provide a strong foundation on which to develop future research and educational interventions.

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Date Created
  • 2014

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Ensayistas contemporáneas latinoamericanas: testimonios como estrategia discursiva del nuevo periodismo

Description

El presente estudio examina cuatro ensayistas periodistas latinoamericanas, Patricia Verdugo de Chile, Viviana Gorbato de la Argentina, Alma Guillermoprieto de México y Zoé Valdés de Cuba, para entender cómo cada

El presente estudio examina cuatro ensayistas periodistas latinoamericanas, Patricia Verdugo de Chile, Viviana Gorbato de la Argentina, Alma Guillermoprieto de México y Zoé Valdés de Cuba, para entender cómo cada autora transcribe sus investigaciones en el campo en forma narrativa. A través de un examen del uso del procedimiento de la entrevista, analizamos cómo todas estas periodistas de investigación utilizan el testimonio de sus personajes para crear historias que intentan, por un lado, reportar sobre temas culturales de manera objetiva, y por otra parte, captar las emociones de los que viven y que son testigos a los eventos de sus ensayos. Implementamos, por consiguiente, las estrategias discursivas del nuevo periodismo, las cuales proporcionan una manera de diseccionar la estructura de los textos. Al entender la forma de los ensayos en vinculación con probar la importancia del testimonio respecto al elemento emocional, se provoca una búsqueda de lo que significa cada obra. Debido al gran empleo del testimonio, se encuentra con una pluralidad de voces que en su conjunto tienen un mayor propósito: representar una comunidad con una causa pertinente. En el proceso de presentar su causa, se evidencia una posible conexión entre los textos y el género híbrido de la novela testimonial. Finalmente, al considerar el peligro de ser periodista en América Latina, hacemos hincapié en la importancia de esta labor literaria y la gran cantidad de mujeres de esta región mundial que corren tanto riesgo para facilitar a sus lectores esta diversidad de temas culturales.

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Created

Date Created
  • 2012