Zhimei Gu Email & Phone Number

Markham, Ontario, Canada

• Oversee technical aspects of test development (including online and paper-based assessments, large-scale standardized assessments and diagnostic classroom assessments)• Oversee technical aspects of contracts involving test development and/or measurement analyses• Conduct psychometric analyses and studies (e.g., IRT modeling, scaling and equating, differential item functioning analyses, cognitive diagnostic modeling, reliability and validity studies, simulation studies)• Conduct statistical analyses (e.g., hierarchical linear modeling, trend/growth analyses)• Initiate new scoring and modeling methods, cross-validate scores from new scoring software• Develop form designs, sampling designs and test form linking strategies• Develop field test plans for item development and item selections• Develop national norming study plans and instructions• Review online item types/templates from psychometric perspectives• Write research proposals for collecting research data, write technical reports and manuals, present research at professional conferences• Monitor data collection and data quality• Design new customized reports for test users and write programs to generate these reports• Provide technical support to test users (e.g., school boards, schools) and CTC staff regarding measurement and statistical issues, provide support for the psychometric part of software development• Write programs to optimize efficiency and minimize manual work as needed for other teams

Markham, Ontario, Canada

• Oversee all technical aspects of new software development and new content development• Develop work plans and instructions for teams in projects, monitor progress and manage timelines• Oversee software quality (e.g., system functioning, item functioning, automated scoring and reporting, QA testing) and data quality (e.g., data formats and values stored in software, data uploads and exports)• Develop software specifications (e.g., scoring and reporting specifications, data export templates and specifications, features on admin and user interfaces) and software user manuals/instructions• Design new features for online assessments (e.g., online interactive item types, test accommodations, out-of-level testing options, random assignment of test forms, time zones)• Collaborate with various teams (e.g., item writers, educators, software developers, researchers, trainers, data centre, professionals in arts and marketing) and provide instructions, technical support and training• Manage online item and test form creation, including verification of answer keys and reporting categories• Involve in budget planning, cost estimation and selections of vendors

Markham, Ontario, Canada

• Conduct psychometric and statistical analyses• Involve in sampling design, item field testing, item selection and form construction• Develop test specifications, document item parameters and other characteristics• Write computer programs and provide training to support various teams• Design and create customized reports for students and schools

Toronto, Ontario, Canada

All psychometric analyses for the provincial Primary and Junior Writing Assessments (English and French): • Item response theory scaling and equating• Reliability analysis, including rater agreement analysis• Differential Item Functioning (DIF) analysis• Data management and statistical analysis• Research on Multidimensional Item Response Modeling• Technical report

Markham, Ontario, Canada

Markham, Ontario, Canada

Toronto, Ontario, Canada

Doctor Of Philosophy - Phd, Educational Assessment, Testing, And Measurement

Master'S Degree, Educational Assessment, Testing, And Measurement

Bachelor'S Degree, Computer Science And Technology In Education