Presentations
Colloquiums
Crowther, D., & Isbell, D. R. (organizers). (2023, March). Broadening the base and charting new courses in second language speech comprehensibility research. Colloquium presented at the 2023 American Association for Applied Linguistics conference, Portland, Oregon, USA.
Crowther, D. (2019, September). “The construct of accuracy in oral language production studies”. In C. Polio (organizer), Multiple perspectives on accuracy in second language acquisition. Paper presented at the Second Language Research Forum 2019, East Lansing, Michigan, USA.
Peer Reviewed
2023
Crowther, D., & Chun, I. S. (2023, October). Teaching Korean in the United States: Investigating Korean instructors' preparation for university-level teaching.. Paper to be presented online at the 2023 Applied Linguistics Association of Korean International conference, Seogwipo, Jeju Island, South Korea.
Crowther, D., & Chun, I. S. (2023, September). The role of pronunciation in LCTL classrooms: The training and practices of US-based instructors. Paper presented at the 2023 Pronunciation in Second Language Learning and Teaching conference, West Lafayette, Indiana, USA.
Miller, Z. F., Crowther, D., & Isbell, D. R. (2023, March). The nitty gritty of grit: Longitudinal effects of perseverance on foreign language achievement. Paper presented at the 2023 American Association for Applied Linguistics conference, Portland, Oregon, USA.
Harsch, K., & Crowther, D. (2023, February). Operationalizing Global Englishes pedagogies: Merging theory with practice. Paper presented at the annual Hawaii TESOL conference, Laie, Hawaii, USA.
2022
Isbell, D. R., Crowther, D., & Nishizawa, H. (2022, September). In the ear of the beholder: Duolingo English Test spoken performances and university stakeholder perceptions of comprehensibility and academic acceptability. Paper presented at the 2022 Language Assessment Research Conference, Chicago, Illinois, USA.
Crowther, D. (2022, June). Insight from task complexity on global speech production. Paper presented at the Psychology of Language Learning conference, Sydney, Nova Scotia, Canada.
Crowther, D., Isbell, D., & Nishizawa, H. (2022, June). Standardized test performance in the ear of the beholder: University stakeholder perceptions of comprehensibility and academic acceptability. Paper presented at the 2022 Pronunciation in Second Language Learning and Teaching conference, St. Catherines, Ontario, Canada.
Crowther, D., Gilliland, B., & Isbell, D. (2022, March). Assessing pre-service language teachers’ oral communication: A rubric development project. Paper presented at the TESOL 2022 International Convention & English Language Expo, Pittsburgh, Pennsylvania, USA.
Crowther, D., Isbell, D., & Nishizawa, H. (2022, March). What characterizes ‘acceptable’ academic English speaking? Examining task and linguistic/temporal influences on university stakeholders’ judgments. Paper presented at the annual American Association for Applied Linguistics conference, Pittsburgh, Pennsylvania, USA.
Isbell, D., Crowther, D., & Nishizawa, H. (2022, March). Speaking performances, stakeholder perceptions, and scores: Extrapolating from the Duolingo English Test to the university. Paper presented virtually at the Language Testing Research Colloquium.
2021
Crowther, D., & Urada, K. (2021, June). Face-to-face versus online second language speech elicitation: Listeners’ perceptions of audio quality. Paper presented at the 2021 Virtual Pronunciation in Second Language Learning and Teaching conference.
Crowther, D., Gilliland, B., Harsch, K., Isbell, D., & Gochenouer, C. (2021, April). Oral communication for language teachers: Assessment rubric development. Poster presented at the 2021 Assessment for Curricular Improvement Poster Exhibit, Honolulu, Hawaii, USA
Crowther, D., & Isbell, D. R. (2021, March). Who speaks “broken English” now? A conceptual replication of Lindemann (2005) 15 years later. Paper presented at the annual American Association for Applied Linguistics conference, Houston, Texas, USA.
2020
Gilliland, B., Ryan, C., & Crowther, D. (2020, October). Assessing novice language teachers’ oral communication: Rubric development. Poster presented at the 2020 CATESOL 2020 State Conference.
Crowther, D. (2020, March). Global dimensions of second language pronunciation: A meta-analysis of accentedness, comprehensibility, and intelligibility research. Paper to be presented at the annual American Association for Applied Linguistics conference, Denver, Colorado, USA. (Conference cancelled).
Miller, Z. F., & Crowther, D. (2020, March). Foreign language learning in the US military: Environmental effects within and beyond the classroom. Paper to be presented at the annual American Association for Applied Linguistics conference, Denver, Colorado, USA. (Conference cancelled).
2019
Crowther, D. (2019, September). Accentedness and comprehensibility as predictors of task performance: Listeners’ scalar-based vs. raters’ rubric-based scoring. Paper presented at the Second Language Research Forum 2019, East Lansing, Michigan, USA.
Miller, Z. F., & Crowther, D. (2019, September). 'I thought if I ever went undercover in Russia’: Foreign language motivation in a military context. Paper presented at the Second Language Research Forum 2019, East Lansing, Michigan, USA.
Crowther, D. (2019, March). Rating L2 speaker comprehensibility on monologic versus interactive tasks: What is the effect of speaking task type? Paper presented at the annual American Association for Applied Linguistics conference, Atlanta, Georgia, USA.
Crowther, D., De Costa, P. I., & Maloney, J. (2019, March). Pedagogical inquiry in English as an international language: A synthesis. Paper presented at the TESOL 2019 International Convention & English Language Expo, Atlanta, Georgia, USA.
Loewen, S., Crowther, D., & Miller, Z. F. (2019, February). Mobile-assisted language learning on Duolingo: A Turkish case study. Paper presented at the International Conference MOBILLE, New York, New York, USA.
2018
Crowther, D., Loewen, S., Gonulal, T., & Tigchelaar, M. (2018, May). Measuring statistical literacy: The case of second language acquisition and applied linguistics researchers. Paper presented at the conference of Research Methodology in the Field of Second Language Acquisition and Learning, Montpellier, France.
2017
Crowther, D. (2017, October). The Role of Aligned Future L2 Selves in Overcoming Academic and Social Adjustments. Paper presented at the Second Language Research Forum 2017, Columbus, Ohio, USA.
Tigelchaar, M., Crowther, D., Isbell, D., Lim, J., & Loewen, S. (2017, October). Statistical Literacy in SLA: Researchers' Perspectives. Paper presented at the Second Language Research Forum 2017, Columbus, Ohio, USA.
Lee, J., Crowther, D., Kim, S., Lim, J., & Loewen, S. (2017, October). Methodological Synthesis of Cluster Analysis in Second Language Acquisition Research. Paper presented at the Second Language Research Forum 2017, Columbus, Ohio, USA.
Crowther, D., Trofimovich, P., Saito, K., & Isaacs, T. (2017, September). Linguistic dimensions of L2 accentedness and comprehensibility vary across speaking tasks. Poster presented at the 9th annual Pronunciation in Second Language Learning and Teaching conference, Salt Lake City, Utah, USA.
Crowther, D. (2017, May). Language investment during university adjustment: The divergent path of two Chinese freshmen. Paper presented at the annual conference of the Canadian Association of Applied Linguistics, Toronto, Ontario, Canada.
Loewen, S., Crowther, D., Isbell, D., Lim, J., Maloney, J., & Tigchelaar, M. (2017, March). The statistical literacy of applied linguistics researchers. Paper presented at the annual American Association for Applied Linguistics conference, Portland, Oregon, USA.
2016
Crowther, D., & Miller, Z. F. (2016, September). Actionable intelligence: A dynamic approach to L2 development for U.S. service academy cadets. Paper presented at the Second Language Research Forum 2016, New York, New York, USA.
Loewen, S., Crowther, D., Isbell, D., Kim, K. M., Maloney, J., Miller, Z. F., & Rawal, H. (2016, September). Learning from scratch using MALL: Duolingo and Turkish. Paper presented at the Second Language Research Forum 2016, New York, New York, USA.
Gass, S. M, Crowther, D., Marsden, E., Plonsky, L., & Spinner, P. (2016, September). A methodological synthesis of judgment tasks in second language research. Paper presented at the Second Language Research Forum 2016, New York, New York, USA.
Marsden, E., Plonsky, L., Crowther, D., Gass, S., & Spinner, P. (2016, August). Looking back and looking forward: A methodological synthesis of judgment tasks in second language research. Paper presented at the 26th annual conference of the European Second Language Association, Jyväskylä, Finland.
Crowther, D. (2016, April). The blurred line between language learner and language user: Navigating the journey from the language to the undergraduate classroom. Paper presented at the annual American Association for Applied Linguistics conference, Orlando, Florida, USA.
2015
Crowther, D., Trofimovich, P., & Isaacs, T. (2015, October). The perception of second language English speech by nonnative listeners: The Effect of first language background. Paper presented at the 7th annual Pronunciation in Second Language Learning and Teaching conference, Dallas, Texas, USA.
De Costa, P. I., & Crowther, D. (2015, October). Global Englishes and SLA: Establishing a dialogue and common reserve. Paper presented at the 21st Conference of the International Association for World Englishes, Istanbul, Turkey.
Crowther, D., & De Costa, P. I. (2015, August). Agency vs. proficiency in English as a lingua franca: Interactions between native speakers and nonnative speakers at a US university. Paper presented at the 8th International Conference of English as a Lingua Franca, Beijing, China.
McDonough, K., Crowther, D., & Kielstra, P. (2015, March). Exploring the potential role of eye gaze in eliciting English L2 speakers’ responses to feedback. Paper presented at the annual American Association for Applied Linguistics conference, Toronto, Ontario, Canada.
2014
Isaacs, T., Trofimovich, P., Crowther, D., Saito, K., & Foote, J. (2014, September). Beyond the "armchair" method of rating scale construction: Validating an empirically-derived L2 comprehensibility scale. Paper presented at the 24th annual conference of the European Second Language Association, York, U.K.
Isaacs, T., Trofimovich, P., Crowther, D., Saito, K., & Foote, J. (2014, June). Modelling comprehensibility in an oral production scale for L2 learners of English: Which linguistic factors generalize across L1s? Paper presented at the 36th Language Testing Research Colloquium, Amsterdam, Netherlands.
Crowther, D., Trofimovich, P., Isaacs, T., & Saito, K. (2014, May). Differentiating
accent from comprehensibility: The importance of learner background. Paper
presented at the annual conference of the Canadian Association of Applied Linguistics, St. Catharines, Ontario, Canada.
Crowther, D. (2014, April). Mitigating the face-threatening act of correction: Politeness in the second language classroom. Paper presented at the 19th International Conference on Pragmatics and Language Learning, Bloomington, Indiana, USA.
Crowther, D., Trofimovich, P., Saito, K., & Isaacs, T. (2014, March). L2 comprehensibility revisited: Investigating the effects of learner background and speaking task. Paper presented at the annual American Association for Applied Linguistics conference, Portland, Oregon, USA.
McDonough, K., Kielstra, P., Crowther, D., & Smith, G. (2014, March). The relationship between structural priming and L2 speakers’ cognitive abilities. Paper presented at the annual American Association for Applied Linguistics conference, Portland, Oregon, USA.
Crowther, D., & Isbell, D. R. (organizers). (2023, March). Broadening the base and charting new courses in second language speech comprehensibility research. Colloquium presented at the 2023 American Association for Applied Linguistics conference, Portland, Oregon, USA.
Crowther, D. (2019, September). “The construct of accuracy in oral language production studies”. In C. Polio (organizer), Multiple perspectives on accuracy in second language acquisition. Paper presented at the Second Language Research Forum 2019, East Lansing, Michigan, USA.
Peer Reviewed
2023
Crowther, D., & Chun, I. S. (2023, October). Teaching Korean in the United States: Investigating Korean instructors' preparation for university-level teaching.. Paper to be presented online at the 2023 Applied Linguistics Association of Korean International conference, Seogwipo, Jeju Island, South Korea.
Crowther, D., & Chun, I. S. (2023, September). The role of pronunciation in LCTL classrooms: The training and practices of US-based instructors. Paper presented at the 2023 Pronunciation in Second Language Learning and Teaching conference, West Lafayette, Indiana, USA.
Miller, Z. F., Crowther, D., & Isbell, D. R. (2023, March). The nitty gritty of grit: Longitudinal effects of perseverance on foreign language achievement. Paper presented at the 2023 American Association for Applied Linguistics conference, Portland, Oregon, USA.
Harsch, K., & Crowther, D. (2023, February). Operationalizing Global Englishes pedagogies: Merging theory with practice. Paper presented at the annual Hawaii TESOL conference, Laie, Hawaii, USA.
2022
Isbell, D. R., Crowther, D., & Nishizawa, H. (2022, September). In the ear of the beholder: Duolingo English Test spoken performances and university stakeholder perceptions of comprehensibility and academic acceptability. Paper presented at the 2022 Language Assessment Research Conference, Chicago, Illinois, USA.
Crowther, D. (2022, June). Insight from task complexity on global speech production. Paper presented at the Psychology of Language Learning conference, Sydney, Nova Scotia, Canada.
Crowther, D., Isbell, D., & Nishizawa, H. (2022, June). Standardized test performance in the ear of the beholder: University stakeholder perceptions of comprehensibility and academic acceptability. Paper presented at the 2022 Pronunciation in Second Language Learning and Teaching conference, St. Catherines, Ontario, Canada.
Crowther, D., Gilliland, B., & Isbell, D. (2022, March). Assessing pre-service language teachers’ oral communication: A rubric development project. Paper presented at the TESOL 2022 International Convention & English Language Expo, Pittsburgh, Pennsylvania, USA.
Crowther, D., Isbell, D., & Nishizawa, H. (2022, March). What characterizes ‘acceptable’ academic English speaking? Examining task and linguistic/temporal influences on university stakeholders’ judgments. Paper presented at the annual American Association for Applied Linguistics conference, Pittsburgh, Pennsylvania, USA.
Isbell, D., Crowther, D., & Nishizawa, H. (2022, March). Speaking performances, stakeholder perceptions, and scores: Extrapolating from the Duolingo English Test to the university. Paper presented virtually at the Language Testing Research Colloquium.
2021
Crowther, D., & Urada, K. (2021, June). Face-to-face versus online second language speech elicitation: Listeners’ perceptions of audio quality. Paper presented at the 2021 Virtual Pronunciation in Second Language Learning and Teaching conference.
Crowther, D., Gilliland, B., Harsch, K., Isbell, D., & Gochenouer, C. (2021, April). Oral communication for language teachers: Assessment rubric development. Poster presented at the 2021 Assessment for Curricular Improvement Poster Exhibit, Honolulu, Hawaii, USA
Crowther, D., & Isbell, D. R. (2021, March). Who speaks “broken English” now? A conceptual replication of Lindemann (2005) 15 years later. Paper presented at the annual American Association for Applied Linguistics conference, Houston, Texas, USA.
2020
Gilliland, B., Ryan, C., & Crowther, D. (2020, October). Assessing novice language teachers’ oral communication: Rubric development. Poster presented at the 2020 CATESOL 2020 State Conference.
Crowther, D. (2020, March). Global dimensions of second language pronunciation: A meta-analysis of accentedness, comprehensibility, and intelligibility research. Paper to be presented at the annual American Association for Applied Linguistics conference, Denver, Colorado, USA. (Conference cancelled).
Miller, Z. F., & Crowther, D. (2020, March). Foreign language learning in the US military: Environmental effects within and beyond the classroom. Paper to be presented at the annual American Association for Applied Linguistics conference, Denver, Colorado, USA. (Conference cancelled).
2019
Crowther, D. (2019, September). Accentedness and comprehensibility as predictors of task performance: Listeners’ scalar-based vs. raters’ rubric-based scoring. Paper presented at the Second Language Research Forum 2019, East Lansing, Michigan, USA.
Miller, Z. F., & Crowther, D. (2019, September). 'I thought if I ever went undercover in Russia’: Foreign language motivation in a military context. Paper presented at the Second Language Research Forum 2019, East Lansing, Michigan, USA.
Crowther, D. (2019, March). Rating L2 speaker comprehensibility on monologic versus interactive tasks: What is the effect of speaking task type? Paper presented at the annual American Association for Applied Linguistics conference, Atlanta, Georgia, USA.
Crowther, D., De Costa, P. I., & Maloney, J. (2019, March). Pedagogical inquiry in English as an international language: A synthesis. Paper presented at the TESOL 2019 International Convention & English Language Expo, Atlanta, Georgia, USA.
Loewen, S., Crowther, D., & Miller, Z. F. (2019, February). Mobile-assisted language learning on Duolingo: A Turkish case study. Paper presented at the International Conference MOBILLE, New York, New York, USA.
2018
Crowther, D., Loewen, S., Gonulal, T., & Tigchelaar, M. (2018, May). Measuring statistical literacy: The case of second language acquisition and applied linguistics researchers. Paper presented at the conference of Research Methodology in the Field of Second Language Acquisition and Learning, Montpellier, France.
2017
Crowther, D. (2017, October). The Role of Aligned Future L2 Selves in Overcoming Academic and Social Adjustments. Paper presented at the Second Language Research Forum 2017, Columbus, Ohio, USA.
Tigelchaar, M., Crowther, D., Isbell, D., Lim, J., & Loewen, S. (2017, October). Statistical Literacy in SLA: Researchers' Perspectives. Paper presented at the Second Language Research Forum 2017, Columbus, Ohio, USA.
Lee, J., Crowther, D., Kim, S., Lim, J., & Loewen, S. (2017, October). Methodological Synthesis of Cluster Analysis in Second Language Acquisition Research. Paper presented at the Second Language Research Forum 2017, Columbus, Ohio, USA.
Crowther, D., Trofimovich, P., Saito, K., & Isaacs, T. (2017, September). Linguistic dimensions of L2 accentedness and comprehensibility vary across speaking tasks. Poster presented at the 9th annual Pronunciation in Second Language Learning and Teaching conference, Salt Lake City, Utah, USA.
Crowther, D. (2017, May). Language investment during university adjustment: The divergent path of two Chinese freshmen. Paper presented at the annual conference of the Canadian Association of Applied Linguistics, Toronto, Ontario, Canada.
Loewen, S., Crowther, D., Isbell, D., Lim, J., Maloney, J., & Tigchelaar, M. (2017, March). The statistical literacy of applied linguistics researchers. Paper presented at the annual American Association for Applied Linguistics conference, Portland, Oregon, USA.
2016
Crowther, D., & Miller, Z. F. (2016, September). Actionable intelligence: A dynamic approach to L2 development for U.S. service academy cadets. Paper presented at the Second Language Research Forum 2016, New York, New York, USA.
Loewen, S., Crowther, D., Isbell, D., Kim, K. M., Maloney, J., Miller, Z. F., & Rawal, H. (2016, September). Learning from scratch using MALL: Duolingo and Turkish. Paper presented at the Second Language Research Forum 2016, New York, New York, USA.
Gass, S. M, Crowther, D., Marsden, E., Plonsky, L., & Spinner, P. (2016, September). A methodological synthesis of judgment tasks in second language research. Paper presented at the Second Language Research Forum 2016, New York, New York, USA.
Marsden, E., Plonsky, L., Crowther, D., Gass, S., & Spinner, P. (2016, August). Looking back and looking forward: A methodological synthesis of judgment tasks in second language research. Paper presented at the 26th annual conference of the European Second Language Association, Jyväskylä, Finland.
Crowther, D. (2016, April). The blurred line between language learner and language user: Navigating the journey from the language to the undergraduate classroom. Paper presented at the annual American Association for Applied Linguistics conference, Orlando, Florida, USA.
2015
Crowther, D., Trofimovich, P., & Isaacs, T. (2015, October). The perception of second language English speech by nonnative listeners: The Effect of first language background. Paper presented at the 7th annual Pronunciation in Second Language Learning and Teaching conference, Dallas, Texas, USA.
De Costa, P. I., & Crowther, D. (2015, October). Global Englishes and SLA: Establishing a dialogue and common reserve. Paper presented at the 21st Conference of the International Association for World Englishes, Istanbul, Turkey.
Crowther, D., & De Costa, P. I. (2015, August). Agency vs. proficiency in English as a lingua franca: Interactions between native speakers and nonnative speakers at a US university. Paper presented at the 8th International Conference of English as a Lingua Franca, Beijing, China.
McDonough, K., Crowther, D., & Kielstra, P. (2015, March). Exploring the potential role of eye gaze in eliciting English L2 speakers’ responses to feedback. Paper presented at the annual American Association for Applied Linguistics conference, Toronto, Ontario, Canada.
2014
Isaacs, T., Trofimovich, P., Crowther, D., Saito, K., & Foote, J. (2014, September). Beyond the "armchair" method of rating scale construction: Validating an empirically-derived L2 comprehensibility scale. Paper presented at the 24th annual conference of the European Second Language Association, York, U.K.
Isaacs, T., Trofimovich, P., Crowther, D., Saito, K., & Foote, J. (2014, June). Modelling comprehensibility in an oral production scale for L2 learners of English: Which linguistic factors generalize across L1s? Paper presented at the 36th Language Testing Research Colloquium, Amsterdam, Netherlands.
Crowther, D., Trofimovich, P., Isaacs, T., & Saito, K. (2014, May). Differentiating
accent from comprehensibility: The importance of learner background. Paper
presented at the annual conference of the Canadian Association of Applied Linguistics, St. Catharines, Ontario, Canada.
Crowther, D. (2014, April). Mitigating the face-threatening act of correction: Politeness in the second language classroom. Paper presented at the 19th International Conference on Pragmatics and Language Learning, Bloomington, Indiana, USA.
Crowther, D., Trofimovich, P., Saito, K., & Isaacs, T. (2014, March). L2 comprehensibility revisited: Investigating the effects of learner background and speaking task. Paper presented at the annual American Association for Applied Linguistics conference, Portland, Oregon, USA.
McDonough, K., Kielstra, P., Crowther, D., & Smith, G. (2014, March). The relationship between structural priming and L2 speakers’ cognitive abilities. Paper presented at the annual American Association for Applied Linguistics conference, Portland, Oregon, USA.