James Marcus Email & Phone Number

Washington, Dc, Us

Durham, North Carolina, Us

* IQVIA Gold Impact Award (2023) for "Most thoughtful contribution to the Statistics and Psychometrics Center of Excellence"* Awarded the 'Super Boffin' title by the Strategic & Scientific Research (SSR) Global Business Unit (2024 End of Year Awards): Recognized for exceptional methodological and statistical expertise, as voted by over 50 team members

Bethesda, Md, Us

• Provide project teams with scientific leadership in planning and executing patient-centered research studies• Evaluate the measurement properties of new and existing patient-reported outcome assessments for use in clinical trials• Author proposals, study protocols, statistical analysis plans, and reports fit for client submission• Provide clients with guidance on interpreting and addressing FDA feedback

London, England, Gb

* Design and lead the psychometric / trial analysis component of patient reported patient reported outcome (PRO) projects:- Validation of new instruments (including FDA submissions for medical product label claims)- Analysis of PRO endpoints in randomized clinical trials

Washington, Dc, Us

* Designed and executed psychometric analyses for ACCESS, a large-scale multi-state (WIDA consortium) K-12 English-language assessment, and other related projects* Designed data visualizations as decision aids that - Vastly improved efficiency of item selection practices - reducing process by hours / days- Provided critical feedback to test developers on performance of items * Formulated new approaches to conducting psychometric analyses - formalized decision rules and developed code / procedures to automate tasks * Established and supported quality control procedures related to quantitative analyses to ensure reliability and integrity of results* Wrote syntax / macro to improve efficiency and stability of extant data management procedures * Served as lead author on technical documentation and reports

Princeton, Nj, Us

* As part of the Educational Survey Assessment Research (ESAR) group, conducted special studies related to the National Assessment of Educational Progress (NAEP), the largest continuing and nationally representative assessment of American students’ abilities - As psychometric lead, drafted analysis plan for vertically scaling NAEP Mathematics assessment across Grades 8 – 12 and linking scores to an international assessment of math literacy (PISA) - As part of a project on linking NAEP Grade 8 Reading scores to an alternate reading framework (Lexile), investigated irregularities in the Lexile score distribution; prepared a memo for sharing with the client that outlined the issues, provided possible solutions, and discussed the impact on the linking study results* Implemented a SAS procedural approach to pre-smoothing via kernel density estimation that required neither custom macros nor Proc IML but still yielded similar results - improving efficiency and cost effectiveness* As psychometric lead for NAEP technical documentation, quickly and systematically investigated and addressed a lengthy list of substantive comments provided by a client review of analysis and scaling documentation for 2012 Math, Reading, and Economics assessments - Provided client feedback to ensure proposed changes suited their needs and confirmed satisfaction with explanations of current practices - Documented as a memo procedures for conducting a NAEP tech doc review

New York, Ny, Us

* Planned and implemented major research studies on the visual communication of uncertainty for a US Intelligence (IARPA) funded multi-year project on event forecasting (http://forecastingace.com/aces/) with the goal of improving the experience of end-users* Developed statistical techniques for determining the optimal sample size for aggregating expert judgments * Conducted research on assessing subjective joint probability distributions with isoprobability contours for a NSF-funded project with the goal of improving the user experience in eliciting judgments

New York, Ny, Us

* Cleaned and managed extensive database of student- and college-level information* Wrote efficient SAS code for processing large amounts of data for statistical modeling* Implemented advanced statistical techniques, (e.g., HLM and PLS) for predicting inter-college transfer from four-year institutions

Princeton, Nj, Us

* Assessed via multidimensional item response theory the stability of a bifactor model across multiple operational forms of a high-stakes test of English language proficiency (TOEFL)* Presented findings at an international measurement and education conference (NCME)

Champaign, Il, Us

* Planned and lead discussion sections, tutorials, and laboratory sections for both undergraduate- and graduate-level introductory statistics classes as well as a class on measurement and test development* Conducted usability studies on the effectiveness of an electronic knee-pad on improving pilot performance in instrument-based (IFR) flights

Ottawa, Ontario, Ca

* Conducted an accuracy analysis of Canadian intelligence analysts’ forecasts drawing on techniques from signal detection theory and ordinal logistic regression* Developed a primer on accuracy analysis methods and interpretation for department use

Doctor Of Philosophy (Ph.D.), Psychometrics And Quantitative Psychology

Ma, Quantitative Psychology

Ms, Statistics

Bs Honours, Psychology

Dec, Pure & Applied Science