
Research
My initial training and research was in mathematics, with a focus in geometric group theory. In particular, I explored various generalizations of Thompson's groups and their metric properties.
Since 2010, my research has been focused on higher education and mathematics education. I am particularly interested in issues of access and retention in higher education for nontraditional students or students who have traditionally been underrepresented in higher education and in STEM (science, technology, engineering and mathematics) fields.
My current research in higher education focuses on online learning, with an interest in determining the extent to which it actually broadens access to higher education, in analyzing the extent to which retention rates may be different for students who take online courses in college than those who do not, and in assessing which factors may predict retention for students who take courses online. I have also explored factors which influence student success and retention in developmental mathematics classes in college.
My current research in mathematics education focuses on foundational knowledge in elementary algebra. I am exploring ways in which conceptual understanding can be measured and effectively taught in elementary algebra classes.
You can find my current CV here.
I am currently leading an ongoing research project that investigates factors related to online course outcomes. The website for that project can be found here:
Online Learning Research Project
Publications:
On Education:

Wladis, C. and Mesa, V. (In Press) What Can Happen When Community College Practitioners Lead Research Projects? The Case of CUNY. Review of Higher Education.

Wladis, C., Hachey, A.C. and Conway, K.M. (2018) No time for college? An investigation of time poverty and parenthood. Journal of Higher Education. doi: 10.1080/00221546.2018.1442983 fulltext (first 50 downloads free) fulltext of accepted version

Wladis, C., Hachey, A. C. and Conway, K. (2017) Online STEM and mathematics coursetaking: Retention and Access, In A. Volungeviciene, A. Szucs (Eds.), Diversity Matters! Proceedings of the EDEN 2017 Annual Conference. Budapest, Hungary: European Distance and ELearning Network (EDEN), 296305.

Wladis, C., Smith, J. and Duranczyk, I. (2017). Research on Nonuniversity Tertiary Mathematics. In G. Kaiser (Ed.), Proceedings of the 13th International Congress on Mathematical Education. Hamburg, Germany: Springer International Publishing, 693694.

Wladis, C., Offenholley, K., Lee, J. K., Dawes, D. and Licwinko, S. (2017). An instructorgenerated concept framework for elementary algebra in the tertiary context. In T. Dooley, V. DurandGuerrier & G. Guedet (Eds.), Proceedings of the Tenth Congress of the European Society for Research in Mathematics Education. Dublin, Ireland: Institute of Education Dublin City University and ERME, 557558.

Wladis, C., Offenholley, K., Licwinko, S., Dawes, D. and Lee, J. K. (2017) Theoretical Framework of Algebraic Concepts for Elementary Algebra, In T. FukawaConnelly, N. Engelke Infante, M. Wawro, S. Brown (Eds.), Proceedings of the 20th Annual Conference on Research in Undergraduate Mathematics Education. San Diego, CA, 15101516.fulltext

Wladis, C., Hachey, A. C. and Conway, K. (2017) Online STEM and mathematics coursetaking: Retention and Access, In T. FukawaConnelly, N. Engelke Infante, M. Wawro, S. Brown (Eds.), Proceedings of the 20th Annual Conference on Research in Undergraduate Mathematics Education. San Diego, CA, 16951697. fulltext

Wladis, C., Conway, K.M and Hachey, A.C. (2016). Assessing Readiness for Online Education – Research Models for Identifying Students at Risk. Online Learning [Special Section: Best Papers Presented at the OLC 21st International Conference on Online Learning and Innovate 2016], 20(3), 97109. fulltext

Wladis, C. and Samuels, J. (2016) Do online readiness surveys do what they claim? Validity, reliability, and subsequent student enrollment decisions. Computers & Education, 98, 39–56. doi:10.1016/j.compedu.2016.03.001 fulltext of accepted version

Wladis, C., Hachey, A. C. and Conway, K. (2016) Student characteristics and online retention: Preliminary investigation of factors relevant to mathematics course outcomes, In T. FukawaConnelly, N. Engelke Infante, M. Wawro, S. Brown (Eds.), Proceedings of the 19th Annual Conference on Research in Undergraduate Mathematics Education. Pittsburg, PA, 14421453. fulltext

Wladis, C., Hachey, A. C. and Conway, K. (2015) Which STEM Majors Enroll in Online Courses, and Why Should We Care? The Impact of Ethnicity, Gender, and Nontraditional Student Characteristics. Computers & Education, 87, 285308. doi: 10.1016/j.compedu.2015.06.010 fulltext of accepted version

Wladis, C., Conway, K.M and Hachey, A.C. (2015). Using courselevel factors as predictors of online course outcomes: A multilevel analysis at an urban community college. Studies in Higher Education. doi: 10.1080/03075079.2015.1045478 fulltext of accepted version

Wladis, C., Conway, K.M and Hachey, A.C. (2015). The Online STEM Classroom—Who Succeeds? An Exploration of the Impact of Ethnicity, Gender, and Nontraditional Student Characteristics in the Community College Context. Community College Review, 43(2):142164. doi:10.1177/0091552115571729 fulltext of accepted version

Wladis, C., Hachey, A.C. & Conway, K.M. (2014). The representation of minority, female, and nontraditional STEM majors in the online environment at community colleges: A nationally representative study. Community College Review, 43(1), 89114. doi: 10.1177/0091552114555904 fulltext of accepted version

Hachey, A. C., Wladis, C. and Conway, K. (2014). Prior online course experience and G.P.A. as predictors of subsequent online STEM course outcomes, The Internet and Higher Education, 25, 1117. doi:10.1016/j.iheduc.2014.10.003 fulltext of accepted version

Wladis, C., Hachey, A.C. & Conway, K.M. (2014). An investigation of courselevel factors as predictors of online STEM course outcomes. Computers & Education, 77, 145150. doi: 10.1016/j.compedu.2014.04.015 fulltext of accepted version

Wladis, C., Hachey, A. C. and Conway, K. (2014). The role of enrollment choice in online education: Course selection rationale and course difficulty as factors affecting retention, Journal of Asynchronous Learning Networks, 18(3). http://olj.onlinelearningconsortium.org/index.php/jaln/article/view/391 fulltext of accepted version

Hachey, A. C., Wladis, C. and Conway, K. (2014). Do prior online course outcomes provide more information than G.P.A. alone in predicting subsequent online course grades and retention? An observational study at an urban community college, Computers & Education. 72, 5967. doi: http://dx.doi.org/10.1016/j.compedu.2013.10.012 fulltext of accepted version

Mesa, V., Wladis, C. and Watkins, L. (2014). Research Problems in Community College Mathematics Education: Testing the Boundaries of K–12 Research, Journal of Research in Mathematics Education. 45(2), 173193. doi: 10.5951/jresematheduc.45.2.0173 fulltext of accepted version

Wladis, C., Offenholley, K., & George, M. (2014). Leveraging Technology to Improve Developmental Mathematics Course Completion: Evaluation of a LargeScale Intervention. Community College Journal of Research and Practice, 38(12), 10831096. doi:10.1080/10668926.2012.745100 fulltext of accepted version

Conway, K., Hachey, A.C. and Wladis, C. (2014). A new disapora: Latino(a)s in the online environment. In Y. Medina and A. D. Macaya (Eds.). Latinos on the East Coast: A critical reader. NY, NY: Peter Lang, 120138.

Wladis, C., Hachey, A.C., Conway, K.M. (2013). Are online students in STEM (science, technology, engineering and mathematics) courses at greater risk of nonsuccess? American Journal of Educational Studies. 6(1), 6584.

Hachey, A.C., Wladis, C. & Conway, K.M. (2013) Balancing retention and access in online courses: restricting enrollment… Is it worth the cost? Journal of College Student Retention: Research, Theory & Practice, 15(1), 936.

Hachey, A.C., Conway, K.M. and Wladis, C. (2013). Community colleges and underappreciated assets: Using institutional data to promote success in online learning. Online Journal of Distance Learning Administration, 16(1), Spring.

Wladis, C. and Morgulis, A. (2012) Increasing student success in intermediate algebra through collaborative learning at a diverse urban community college. In S. Brown, S. Larsen, K. Marrongelle, and M. Oehrtman (Eds.), Proceedings of the 15th Annual Conference on Research in Undergraduate Mathematics Education, (Vol.2,). Portland, Oregon, 310319.

Wladis, C., Hachey, A. C. and Conway, K. (2012) An analysis of the effect of the online environment on STEM student success, In S. Brown, S. Larsen, K. Marrongelle, and M. Oehrtman (Eds.), Proceedings of the 15th Annual Conference on Research in Undergraduate Mathematics Education, (Vol.2). Portland, Oregon, 291300.

Wladis, C., Offenholley, K. and George, M. (2012) Identifying developmental students who are atrisk: An intervention using computerassisted instruction at a large urban community college. In S. Brown, S. Larsen, K. Marrongelle, and M. Oehrtman (Eds.), Proceedings of the 15th Annual Conference on Research in Undergraduate Mathematics Education, (Vol.2). Portland, Oregon, 301309.

Hachey, A. C., Wladis, C. and Conway, K. (2012) Is the second time the charm? Investigating trends in online reenrollment, retention and success. The Journal of Educators Online, 9(1), 125.

Conway, K., Wladis, C. and Hachey, A. C. (2011) Minority student access in the online environment, Hispanic Educational Technologies Services (HETs) Journal, II, retrieved from http://www.hets.org/journal/articles/68minoritystudentaccessintheonlineenvironment.
 Conway, K., Hachey, A. C. and Wladis, C. (2011). Growth of online education in a community college, Academic Exchange Quarterly, 15(3), 96101.
In Mathematics:

Wladis, C. (2012) The word problem and the metric for generalizations of Thompson's group F on more than one integer, Journal of the London Mathematical Society, 85(2), 301322. preprint

Wladis, C. (2011) Cyclic subgroups are quasiisometrically embedded in the ThompsonStein groups,” International Journal of Algebra and Computation (Proceedings of the International Conference on Geometric and Combinatoric Methods in Group Theory and Semigroup Theory), 22(1&2), 365385. preprint

Wladis, C. (2011) Thompson’s groups are distorted in the ThompsonStein groups, Pacific Journal of Mathematics 250(2), 473485. preprint

Wladis, C. (2009) Unusual geodesics in Thompson's group F(n), Illinois Journal of Mathematics, 53(2), 483514. preprint

Wladis, C. (2007) Thompson’s group F(n) is not minimally almost convex, New York Journal of Mathematics, 13, 437481. fulltext
