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Iowa State University

Bilingual, Multilingual, and Multicultural Education

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Full-Text Articles in Education

The Intersection Of Agricultural Education And Teaching Foreign Languages In American Elementary Schools, Kori Floyd Jan 2020

The Intersection Of Agricultural Education And Teaching Foreign Languages In American Elementary Schools, Kori Floyd

Creative Components

This project explores the intersection of agricultural education and teaching foreign languages in American elementary schools. The project was created to address the need to expose young children to the benefits of agriculture and foreign languages, which would potentially develop into a global career option, as agriculture is projected to become a sustainable industry in the 21st century job market. Furthermore, elementary students would benefit from learning about agriculture through foreign language education due to the large Spanish-speaking population that works in the agriculture industry in the United States. Elementary students from English-speaking households will gain a cultural perspective ...


Asr As A Tool For Providing Feedback For Vowel Pronunciation Practice, Agata Guskaroska Jan 2019

Asr As A Tool For Providing Feedback For Vowel Pronunciation Practice, Agata Guskaroska

Graduate Theses and Dissertations

The purpose of the study is to examine the usefulness of mobile-assisted ASR dictation systems (Gboard, Siri or voice dictation on smartphones) for vowel pronunciation practice by looking at three aspects of its usefulness: pronunciation improvement by using ASR, accuracy of recognition, and the learners’ attitudes towards using this system. A list of 30 words containing minimal pairs of the contrasts /i/, /ɪ/; /æ/, /ɛ/; /u/, /ʊ/; /ɑ/, /ʌ/ and some distractors was given to 21 Macedonian EFL learners, divided into two groups, an experimental (n=11) and a control group (n=10). A mixed methods approach was used in ...


Developing And Evaluating Corpus-Based Feedback, Mo Chen Jan 2019

Developing And Evaluating Corpus-Based Feedback, Mo Chen

Graduate Theses and Dissertations

This dissertation outlines the development of a system of corpus-based feedback and evaluates its effects on students’ error correction and language learning. The design of the corpus-based feedback used in the study was informed by two SLA theories: the Interactionist Approach and Skill-learning Theory. The dissertation theorizes all aspects of the feedback design and discusses the various features of corpus-based feedback from SLA theoretical perspectives. To evaluate the quality of corpus-based feedback, the study compared it to that of traditional coded feedback. Based on the logical framework for evaluating CALL corrective feedback and Chapelle’s evaluation criteria (2001), five research ...


The Effect Of Task Complexity On Rater Severity In An Adaptive Performance-Based Second Language Oral Communication Test, Yongkook Won Jan 2019

The Effect Of Task Complexity On Rater Severity In An Adaptive Performance-Based Second Language Oral Communication Test, Yongkook Won

Graduate Theses and Dissertations

Despite the benefits of performance-based oral communication tests, a plethora of variables, as illustrated in Ockey and Li’s (2015) model of oral communication assessment, can create construct-irrelevant variance in test scores. In relation to human participants in the oral communication tests, previous studies mostly focused on the direct effect of the rater group variable on test scores. Little attention has been paid to the interaction of raters with interviewers in oral communication tests. The present study investigates how raters evaluate test takers’ performance in performance-based oral communication tests when interviewers can adaptively choose their questions, in terms of task ...


Social Justice Education In Rural White Schools, Nathaniel Overberg Jan 2019

Social Justice Education In Rural White Schools, Nathaniel Overberg

Creative Components

No abstract provided.


Cogna/Te/Do/To: How To Use Cognates In English, Spanish, And Portuguese, Nancy A. Acosta Jan 2018

Cogna/Te/Do/To: How To Use Cognates In English, Spanish, And Portuguese, Nancy A. Acosta

Creative Components

This creative component introduces the concept of cognates and false cognates through sequential art. This guide on cognates leads the reader through a fictional society whose core philosophy is centered around languages and the preservation of any that they come across. By using storytelling elements present both in comic book work (sound effects, emotive characters, sequential order) and in graphic design (information hierarchy, semiotics), the story builds a connection between the material and the reader. Cognates here can be a tool for English speakers to acquire vocabulary of Spanish and Portuguese. With the main character of an ex-astronaut, who was ...


The Effect Of Delivery Mode On L2 Students' Listening Comprehension Skills: Context Versus Animated Videos, Leyla Karatay Jan 2018

The Effect Of Delivery Mode On L2 Students' Listening Comprehension Skills: Context Versus Animated Videos, Leyla Karatay

Graduate Theses and Dissertations

This study investigated the effect of different delivery modes on L2 students’ listening

comprehension. A mixed-methods explanatory research design was used to identify whether

animated videos or context videos facilitated better listening comprehension. Fifty-seven ESL undergraduate/graduate students were recruited from an academic speaking and pronunciation course offered at Iowa State University. The effectiveness of the delivery modes was assessed by the participant’s ability to orally summarize the videos. Two trained raters were recruited to rate participants’ audio-recorded summaries. A one-way ANOVA was used to test for a significant difference between mean scores of the two groups. Also, students ...


La Trenza De Las Fronterizas: The Cultural Worlds First-Generation Women Navigate To Access College, Katherine Cameron Seifert Jan 2018

La Trenza De Las Fronterizas: The Cultural Worlds First-Generation Women Navigate To Access College, Katherine Cameron Seifert

Graduate Theses and Dissertations

First generation female students of color face challenges in accessing and navigating the college-going realm. Scholars write about this population, but their tone is often deficit-based, focusing on these students’, families’, and communities’ shortcomings rather than highlighting their resilience and adept abilities at transitioning between different cultural worlds. Using Holland’s (1998) theory of cultural worlds, and employing portraiture methodology, tools of feminist research, and narrative ethnography, this intimate micro-study examines the college-going world that young women of minoritized identities navigates. It asks: (a) What are the identities, relationships, and resources that construe their participation in this world? (b) What ...


Critical Race Theoretical Composition Pedagogy And Its Effects, Paula Fender Jan 2018

Critical Race Theoretical Composition Pedagogy And Its Effects, Paula Fender

Graduate Theses and Dissertations

This research study explores the composing practices of several first-year composition students in two English 250 classes offered at Iowa State University. The study examines and analyzes intercultural awareness students have regarding race, diversity, and life, their own and others’. Using the inductive analysis research design, the research establishes a baseline perspective of students as they perceive themselves or not perceive themselves as “raced bodies.” Additionally, the baseline informs concurrent and emerging themes that students portray when exploring their own self-authorship and their persistent beliefs about how race and culture are or are not significant to composition studies. The relevance ...


Exploring The Multicultural Competence, Will, And Multicultural Work Of Student Affairs Educators In Higher Education, Jennifer Lynn Plagman-Galvin Jan 2018

Exploring The Multicultural Competence, Will, And Multicultural Work Of Student Affairs Educators In Higher Education, Jennifer Lynn Plagman-Galvin

Graduate Theses and Dissertations

Student affairs educators are integral to meet the needs of today’s increasingly diverse student population, especially supporting the student success of underrepresented students and developing the multicultural competence of all students. A significant component of meeting these needs is engaging in multicultural work, which specifically addresses racism and systemic oppression in the higher education environment. Presented in a three-article format, this case study examined the multicultural competence development, will, and multicultural work of student affairs educators engaged in these endeavors.

The goal of multicultural work is to address racism and systems of oppression, and to do so requires multicultural ...


Exploring The Multicultural Competence, Will, And Multicultural Work Of Student Affairs Educators In Higher Education, Jennifer Lynn Plagman-Galvin Jan 2018

Exploring The Multicultural Competence, Will, And Multicultural Work Of Student Affairs Educators In Higher Education, Jennifer Lynn Plagman-Galvin

Graduate Theses and Dissertations

Student affairs educators are integral to meet the needs of today’s increasingly diverse student population, especially supporting the student success of underrepresented students and developing the multicultural competence of all students. A significant component of meeting these needs is engaging in multicultural work, which specifically addresses racism and systemic oppression in the higher education environment. Presented in a three-article format, this case study examined the multicultural competence development, will, and multicultural work of student affairs educators engaged in these endeavors.

The goal of multicultural work is to address racism and systems of oppression, and to do so requires multicultural ...


An Adaptive Computational System For Automated, Learner-Customized Segmental Perception Training In Words And Sentences: Design, Implementation, Assessment, Manman Qian Jan 2018

An Adaptive Computational System For Automated, Learner-Customized Segmental Perception Training In Words And Sentences: Design, Implementation, Assessment, Manman Qian

Graduate Theses and Dissertations

Segmental perception training is important as many phonemic errors are common in second language pronunciation and the perception of foreign phonemic contrasts is often difficult to acquire without instruction (Best & Tyler, 2007; Birdsong, 1992, 2006; Flege, 1988, 1995). Numerous computer-assisted programs exist that provide training for segmental perception, but few of them have made effective use of already-existing language resources. There has been a call for the creation of a computer-assisted pronunciation teaching (CAPT) program that provides individualized needs-based training based on first language and learner proficiency (Levis, 2007; Munro, Derwing, & Thomson, 2015). A perception training model is yet to be developed that takes into account the major components important to intelligibility, the use of technology, and the state-of-the-art research findings on perception training. Specifically, the ideal training model first needs to account for learners’ L1 backgrounds since L2 segmental errors are often L1-specific (Swan & Smith, 2002). Second, the training model should also be tailored to individual needs as not everyone sharing the same L1 will certainly have the L1-predicted errors (Munro, 2018; Munro, Derwing, & Thomson, 2015). Third, the functional load theory (King, 1967) suggests that not all phonemic errors affect intelligibility equally and that perception training should not target all errors as if they had an equal impact on intelligibility. Fourth, the training model should leverage a high-variability phonetic training design, defined as a technique of using multiple voice models for perception training (Pisoni & Lively, 1995), which has been found to be efficacious in improving perception (Thomson, 2012; Wang & Munro, 2004) as well as production (Thomson, 2011).

This study introduces an innovative online perception training system that uses computational approaches to deliver high variability phonetic training designed to improve learners’ ability to discriminate and identify segmental contrasts. The system was designed with five major features. First, the system was developed with intelligibility-driven goals by only focusing on high functional load segmental errors. Second, the system offered training customized to individual learners’ pre-training diagnostic performance and then adapted the training content and intensity based on individual learners’ errors during real-time learning. Third, in recognition of the efficacy of multi-voice models for perception acquisition (Thomson, 2011, 2012; Wang & Munro, 2004), the system utilized high-variability phonetic ...


Spanish Listening Comprehension Test Development Project: Considering Learner L2 Listening Comprehension In The Course Placement Equation, Jennifer Elise Musgrove Jan 2017

Spanish Listening Comprehension Test Development Project: Considering Learner L2 Listening Comprehension In The Course Placement Equation, Jennifer Elise Musgrove

Graduate Theses and Dissertations

Second language (L2) placement exams utilized towards course placement decisions at higher-level educational institutions are considered “high-stakes” relative to the impact that the assessment outcome has on the individual student level as well consequences at the institutional level. Therefore, providing reliable second language assessments that effectively determine L2 learner language proficiency can lower course placement error issues. I argue that assessing a learner’s L2 listening comprehension is an integral part of the learner’s L2 experience within the Target Language Use (TLU) and that it could improve course placement accuracy. Furthermore, I argue for a listening construct that includes ...


The Influence Of An Online Pronunciation Teacher’S Manual On Teachers’ Cognitions, Sinem Sonsaat Jan 2017

The Influence Of An Online Pronunciation Teacher’S Manual On Teachers’ Cognitions, Sinem Sonsaat

Graduate Theses and Dissertations

Despite their importance, teacher’s manuals (TM) have never drawn much attention in language teaching research, and therefore they have not been researched from the perspective of pronunciation teaching. It may be that they have not been perceived as having a role more than being an answer key for student materials (Sheldon, 1987). However, TMs deserve attention since curriculum materials - including TMs - have a positive impact on teachers’ learning and professional development (Grossman & Thompson, 2008). TMs may especially be crucial in supporting teachers in pronunciation teaching since many teachers find this skill challenging because of lack of training (Foote, Holtby, & Derwing, 2011), lack of experience (Burns, 2006), lack of knowledge (Baker & Murphy, 2011), and lack of confidence (Bernat, 2008).

This study investigated native and non-native English-speaking teachers’ (NEST and NNEST) cognitions – mainly knowledge –in relation to (1) pronunciation teaching and (2) pronunciation teaching materials. In addition, the study explored (3) how teachers used an online teacher’s manual (OTM) and (4) what kind of influences the OTM had on pronunciation teachers’ cognitions about and confidence in pronunciation teaching. Data of this study for the first two research questions came from the survey responses of 54 teachers (NEST=34; NNEST=20) and interview responses of 24 teachers (NEST=14; NNEST=10). Data for the third and fourth research questions came from the weekly journal responses and ...


Modes Of Feedback In Esl Writing: Implications Of Shifting From Text To Screencast, Kelly J. Cunningham Jan 2017

Modes Of Feedback In Esl Writing: Implications Of Shifting From Text To Screencast, Kelly J. Cunningham

Graduate Theses and Dissertations

For second language writing (SLW) instructors, decisions regarding technology-mediated feedback are particularly complex as they must also navigate student language proficiency, which may vary across different areas such as reading or listening. Yet technology-mediated feedback remains an underexplored realm in SLW especially with regard to how modes of technology affect feedback and how students interact with and understand it. With the expanding pervasiveness of video and increased access to screencasting (screen recording), SLW instructors have ever-growing access to video modes for feedback, yet little research to inform their choices. Further, with video potentially requiring substantial investment from institutions through hosting ...


Creation And Evaluation Of Multimedia Materials To Promote Development Of Current And Prospective International Students’ Pragmatic Competence In Academic Settings, Ananda Astrini Muhammad Jan 2017

Creation And Evaluation Of Multimedia Materials To Promote Development Of Current And Prospective International Students’ Pragmatic Competence In Academic Settings, Ananda Astrini Muhammad

Graduate Theses and Dissertations

Literature on communicative language ability has identified pragmatic competence as a crucial aspect of second language (L2) communicative language ability. However, current literature has employed varied definitions of pragmatic competence, and little effort has been made to synthesize pragmatics studies in order to come up with a comprehensive list of components that comprise pragmatic competence. This effort was recently undertaken by Laughlin, Wain, and Schmidgall (2015), who conducted a systematic literature review of many different models, principles, and theories of pragmatics. The result was a construct of pragmatic competence which included five components, namely sociocultural knowledge, pragmatic-functional knowledge, grammatical knowledge ...


Engagement Experiences: Adult English Language Learner Students In Advanced Manufacturing At A Midwestern Community College, Ahmed Kwasi Onwona-Agyeman Jan 2017

Engagement Experiences: Adult English Language Learner Students In Advanced Manufacturing At A Midwestern Community College, Ahmed Kwasi Onwona-Agyeman

Graduate Theses and Dissertations

The purpose of this phenomenological study was to explore and gain an in-depth understanding of the day-to-day lived engagement experiences of six adult ELL students enrolled in an advanced-manufacturing program at a midwestern community college. Specifically, this study collected the rich engagement stories andmeaning participants assignedto their stories and experiences. The essence of these experiences was solicited by asking two questions: (a) What are the perceived on-campus engagement experiences and social networks that support and promote success amongadult ELL students in advanced manufacturing and(b) Are there perceived engagement experience issues and barriers for adult ELL students? Two theories, Alexander ...


Peer Response In L1 Writing: Impact On Revisions And Student Perceptions, Altay Ozkul Jan 2017

Peer Response In L1 Writing: Impact On Revisions And Student Perceptions, Altay Ozkul

Graduate Theses and Dissertations

Peer response is a strategy frequently used for improving the quality of students’ writing both in L1 and L2 writing context (Paulus, 1999; Baker, 2016). Studies has investigated how peer response impacts students’ writing influence of peer response on revisions in student writing in ESL context (e.g. Paulus, 1999; Min, 2006; Ting & Qian, 2010; Baker, 2016). However, most of the literature focuses on how peer-response influences student revisions in second-language learning context (Baker, 2016). This study addressed the gap in the literature by analyzing student revisions after peer-response in a writing classroom adopting multiple-draft approach in L1 writing context. The study ...


Teachers’ Beliefs And Classroom Practices Related To Students’ Heritage Language And Culture, Liuran Fan Jan 2017

Teachers’ Beliefs And Classroom Practices Related To Students’ Heritage Language And Culture, Liuran Fan

Graduate Theses and Dissertations

During the 2013-2014 school year, approximately 5 million students in U.S. public schools (K-12) were heritage language speakers (HLSs), which represented almost 10% of total enrollment. The HLS population is expected to keep growing for the next decade (National Education Association, 2011). Teachers play a critical role in the learning and teaching process of students. Teachers’ beliefs and classroom practices toward children’s maintenance of heritage language and culture can have a powerful influence on HLSs’ beliefs and their performance. Researchers have found several factors can predict teachers’ beliefs about students’ heritage language maintenance, including teachers’ personal beliefs and ...


Vowel Variations Among Speakers Of Malaysian English, Sock Wun Phng Jan 2017

Vowel Variations Among Speakers Of Malaysian English, Sock Wun Phng

Graduate Theses and Dissertations

The language policies in Malaysia, having been controlled by the ethnic Malays ever since Independence Day in 1957, have hence dictated which language influences each major ethnic group is exposed to. With the official language as well as the language of instruction in public schools being Malay, ethnic Malays who speak it as a first language (L1) are typically monolingual speakers of Malay. The ethnic Chinese and Indians who usually speak Mandarin or Tamil as an L1 respectively are typically bilingual or trilingual. These different language influences might play a role in how speakers of each ethnic group produce Malaysian ...


Pedagogical Design Principles For Online Learning About The Use Of Sources In Academic Writing: Materials Development And Evaluation In A College-Level Writing Course, Huong Thi Tram Le Jan 2017

Pedagogical Design Principles For Online Learning About The Use Of Sources In Academic Writing: Materials Development And Evaluation In A College-Level Writing Course, Huong Thi Tram Le

Graduate Theses and Dissertations

This project formulated pedagogical principles for designing teaching materials on source use for students in college-level writing courses through major stages of materials development and evaluation. The pedagogical design principles in the development stage were theoretically informed by Systemic Functional Linguistics, Corpus Linguistics including the hypotheses in the data-driven language learning approach, and the Noticing Hypothesis in Second Language Acquisition. In the evaluation stage, the theory of action framework, which integrated the four criteria in Chapelle’s (2011) CALL task appropriateness framework into the linear logic model by Patton (2008), was used to investigate how the materials on source use ...


L2 Learners’ Perceptions And Preferences Of Automated Corrective Feedback, Nawaf Alsallami Jan 2017

L2 Learners’ Perceptions And Preferences Of Automated Corrective Feedback, Nawaf Alsallami

Graduate Theses and Dissertations

Form-focused automated Corrective Feedback (CF) is widely used in general-purpose and specialized writing software and research indicates a positive effect for automated CF on second language (L2) learning (AbuSeileek, 2013; AbuSeileek & Abualsha’r, 2014). As any educational practice, preferences and perceptions of learners are expected to influence how automated CF is used by L2 learners (Amrhein & Nassaji, 2010; Brown, 2009; Schulz, 2001). However, preferences and perceptions of automated CF are poorly understood due to paucity of relevant research. This study contributes to this line of investigation by exploring three pertinent topics. First, it explores L2 learners’ preferences and perceptions of automated CF and four different CF strategies: identification, direct correction, metalinguistic CF, and graduated CF. Second, it examines learners’ preferences between different CF timings and frequency choices ...


A Computer-Adaptive Test Of Productive And Contextualized Academic Vocabulary Breadth In English (Cat-Pav): Development And Validation, Victor Dias De Oliveira Santos Jan 2017

A Computer-Adaptive Test Of Productive And Contextualized Academic Vocabulary Breadth In English (Cat-Pav): Development And Validation, Victor Dias De Oliveira Santos

Graduate Theses and Dissertations

This dissertation study aimed, first and foremost, to address the current scarcity of assessments of productive and contextualized academic vocabulary in English, and thus contribute to the Applied Linguistics and Language Assessment field, by developing what seems to be the first IRT-based computer-adaptive test of productive and contextualized breadth of academic vocabulary in English (henceforth, CAT-PAV), which will be made freely available online to any researchers, ESL instructors, or other interested parties who believe the test can potentially be useful for their specific scenarios. A second aim of the present study was to validate the interpretation of scores from the ...


Not All Word Stress Errors Are Created Equal: Validating An English Word Stress Error Gravity Hierarchy, Monica Grace Richards Jan 2016

Not All Word Stress Errors Are Created Equal: Validating An English Word Stress Error Gravity Hierarchy, Monica Grace Richards

Graduate Theses and Dissertations

Spoken language has no spaces between its words. Therefore, one of the major tasks facing listeners of any language is determining from the largely continuous stream of speech where the invisible word boundaries lie. Although English is not a language where the position of a word's stressed syllable is reliably fixed, its lexical stress is nevertheless fixed enough that L1 English listeners initially apply the heuristic that strong syllables mark the first syllable of a new word, attempting alternative resegmentations only when this heuristic fails to identify a viable word string (Cutler & Butterfield, 1992; Cutler & Carter, 1987). Thus, English word stress errors can severely disrupt listener processing. This study uses auditory lexical decision and delayed word identification tasks to test a hypothesized English Word Stress Error Gravity Hierarchy synthesizing previous research that has identified vowel quality (Bond, 1979, 1999; Bond & Small, 1983; Cutler, 2012, 2015) and direction ...


Transfer From Esl Academic Writing To First Year Composition And Other Disciplinary Courses: An Assessment Perspective, Jooyoung Lee Jan 2016

Transfer From Esl Academic Writing To First Year Composition And Other Disciplinary Courses: An Assessment Perspective, Jooyoung Lee

Graduate Theses and Dissertations

Many American universities offer ESL academic writing courses to help international students prepare for written communication in other university courses. This study investigated the connections and/or disconnections across an ESL writing course, a first-year composition course, and content courses at Iowa State University from the perspective of writing assessment. As a longitudinal mixed-methods study, data were collected over one academic year from 108 international students, 14 instructors of an ESL writing course, 18 instructors of a first-year composition course, and four instructors of content courses. Quantitative data included grades on written assignments and survey responses, while qualitative data consisted ...


The Giver As Content-Based Reading Instruction: Student Beliefs About Using Literature For Esl, Hannah Vaughn Bingham Brunner Jan 2016

The Giver As Content-Based Reading Instruction: Student Beliefs About Using Literature For Esl, Hannah Vaughn Bingham Brunner

Graduate Theses and Dissertations

Although many instructors claim that literature and literary fiction are beneficial to ESL learners, little research exists to support these claims. Using literature in the language classroom through Content-Based Language Teaching (Mohan, 1971) offers a methods-based framework, but still lacks a linguistic backing to support its use in the EFL or ESL classroom. This study seeks to fill this research gap by integrating Mohan’s (1986) Knowledge Framework (KF) with his theories of CBLT in order to provide theory-driven research to the use of literature in the language classroom.

By using a single case metrology, this study aims to document ...


Developing And Evaluating A Pattern Grammar Inspired Call Tool: Pat Gram, Hong Ma Jan 2016

Developing And Evaluating A Pattern Grammar Inspired Call Tool: Pat Gram, Hong Ma

Graduate Theses and Dissertations

This dissertation project developed and evaluated a computer-assisted language learning (CALL) tool, PAT GRAM, that provides explicit instruction on grammar patterns. Evaluation of the explicit instruction offered by PAT GRAM adopted Chapelle’s (2001) framework of criteria for CALL task appropriateness. Following this framework, evidence was collected to investigate language learning potential, learner fit, meaning focus, and impact qualities of the explicit instruction realized through PAT GRAM.

To provide evidence for these qualities, this study employed a case study research design including qualitative and quantitative data. The qualitative data encompassed participants’responses to semi-structured interviews and retrospective verbal protocols focusing ...


A Teacher Development Program On Call Materials Evaluation: Teachers' Knowledge And Attitudes Toward Technology, Corry Caromawati Jan 2016

A Teacher Development Program On Call Materials Evaluation: Teachers' Knowledge And Attitudes Toward Technology, Corry Caromawati

Graduate Theses and Dissertations

Teacher Development Programs (TDPs) in Computer-Assisted Language Learning (CALL) aim to develop teachers' knowledge as well as positive attitudes toward technology. Previous studies (Liu & Kelinsasser, 2015; Tai, 2015, 2013; Rienities, Brouwer, & Lygo-Baker, 2013; Wong & Benson, 2006; Chao, 2006; Hegelheimer, 2006; Yildirim, 2000) show that teachers develop their CALL technical pedagogical knowledge through participation in CALL TDPs. In addition to the development of their knowledge, teachers also increase their positive attitudes toward technology after CALL TDPs as revealed in previous studies such as Tai (2013); Kessler (2007); Hegelheimer (2006); Meskill, Anthony, Hilliker-VanStrander, Tseng, and You (2006), and Yildirim (2000). Regarding teachers' CALL knowledge, it is believed that ...


Integration Of A Web-Based Rating System With An Oral Proficiency Interview Test: Argument-Based Approach To Validation, Hye Jin Yang Jan 2016

Integration Of A Web-Based Rating System With An Oral Proficiency Interview Test: Argument-Based Approach To Validation, Hye Jin Yang

Graduate Theses and Dissertations

This dissertation focuses on the validation of the Oral Proficiency Interview (OPI), a component of the Oral English Certification Test for international teaching assistants. The rating of oral responses was implemented through an innovative computer technology—a web-based rating system called Rater-Platform (R-Plat). The main purpose of the dissertation was to investigate the validity of interpretations and uses of the OPI scores derived from raters’ assessment of examinees’ performance during the web-based rating process. Following the argument-based validation approach (Kane, 2006), an interpretive argument for the OPI was constructed. The interpretive argument specifies a series of inferences, warrants for each ...


Predictive Modeling Of Human Placement Decisions In An English Writing Placement Test, Ngan Hoa Vu Jan 2016

Predictive Modeling Of Human Placement Decisions In An English Writing Placement Test, Ngan Hoa Vu

Graduate Theses and Dissertations

Writing is an important component in standardized tests that are utilized for admission decisions, class placement, and academic or professional development. Placement results of the EPT Writing Test at the undergraduate level are used to determine whether international students meet English requirements for writing skills (i.e., Pass); and to direct students to appropriate ESL writing classes (i.e., 101B or 101C). Practical constraints during evaluation processes in the English Writing Placement Test (the EPT Writing Test) at Iowa State University, such as rater disagreement, rater turnover, and heavy administrative workload, have demonstrated the necessity to develop valid scoring models ...