IXL Learning, a leading edtech company with products used by 14 million students worldwide, is seeking a psychometrician who has a passion for measurement, technology and language learning to join our Emmersion team.
At Emmersion we are on a mission to close the global communication gap. We’re doing this by building an adaptive language assessment and learning engine that is affordable, reliable, and saves our customers time. Our customers use our assessments to make hiring and placement decisions for multilingual professionals and language-learners. We create innovative assessments and tools that ensure our customers’ test-takers are being accurately assessed on their language ability and that our customers are able to make confident evidence-based decisions.
WHAT YOU'LL BE DOING
- Participating in item analysis and item calibration projects using IRT and other statistical methods to create and improve predictive models
- Investigating and participating in solutions for automated item calibration
- Researching computer adaptive testing models
- Participating in building computer adaptive testing models
- Evaluating reliability of artificial speech recognition data
- Researching and identifying additional data points to improve validity and reliability
- Summarizing discoveries and developments in technical reports
- Maintaining expertise in psychometric practices and expanding understanding in language assessment.
- Collaborating with the product and engineering teams to implement psychometric features into new and existing products
WHAT WE'RE LOOKING FOR
- Research background in language assessment, linguistics or language acquisition
- Experience with dichotomous and polytomous IRT models
- Experience with SQL for data analysis
- Experience and proficiency using R or other statistical software for data analysis
- Experience with computer adaptive testing
- Experience with latent trait modeling
- Proven ability to define and validate meaningful metrics
- Proven ability to learn and adapt new approaches quickly
- Strong communication and organization skills
- Educational background in quantitative statistics, and educational measurement
WHAT WE'D LOVE TO SEE
- Familiarity with back-end software development (C#)
- Experience with cognitive diagnostic modeling
- Experience with latent trait modeling
- Experience with natural language processing and automatic speech recognition
- Experience in factor analysis (e.g., exploratory, confirmatory, and structural equation modeling)
At IXL, we value diversity in age, race, ethnicity, gender, sexual orientation, physical and mental ability, political and religious beliefs, and life experience, and we are proud to promote a work environment where everyone, from any background, can do their best work. IXL Learning is an Equal Opportunity Employer.
ABOUT IXL LEARNING
IXL Learning is a leading educational technology company on a big mission: creating innovative learning experiences that help all learners reach their full potential. IXL's comprehensive curriculum and insightful analytics help more than 900,000 teachers deliver personalized instruction, and empower over 14 million students to achieve new learning milestones every day.
