Meet Our Experts

Cindy Hill is a Principal Industrial/Organizational Psychologist at ACT and has been a major contributor to ACT’s WorkKeys system. Dr. Hill conducts validation studies for the development and review of tests for hiring, certification and licensure.  This includes job analysis, the development of test content outlines, national surveys, data analysis, item writing and review, standard setting, and validating the test scores of off-the-shelf and company-specific tests. Her recent research has explored the alignment and “stacking” of credentials.

Chi-Yu Huang is a lead psychometrician in Applied Research at ACT, Inc. She has extensive experience in operational psychometric procedures for licensure and certification examinations, computerized-based testing, and data forensics analyses.

Minsung (Douglas) Kim is a psychometrician in Research and Psychometrics. He has psychometric consulting experience in audit and accreditation of testing programs. His research interests include developing advanced measurement model, automatic item generation, and machine learning.

Dongmei Li is a lead psychometrician at ACT specializing in scaling, equating, and growth modeling.

Xin Li is a lead psychometrician in Research and Psychometrics. Her research interests include computer adaptive testing, statistical modeling, and practical issues in testing. 

Joann Moore is a senior research scientist in Applied Research act ACT specializing in prediction of secondary and postsecondary outcomes from academic and non-cognitive factors.

Patricia (Pat) Muenzen is a Director with the Credentialing and Career Services team. She conducts research to support professional workforce career development, professional licensure and certification programs, and has special expertise in practice analysis and competency profile development. 

Dana Murano is a Research Scientist in ACT's Center for Social, Emotional, and Academic Learning. Her background is in Educational Psychology and her research focuses primarily on the development and assessment of social and emotional skills in students.

Chen Qiu is a psychometrician in Psychometrics Research at ACT, specializing in computer adaptive testing, statistical modeling, psychometric modeling and machine learning.

Edgar Sanchez is a lead research scientist in Applied Research at ACT. He specialized in quasiexperimental design usage and predictive modeling  in support of ACT's test preparation programs.

Jeff Schiel, a lead research scientist on ACT’s applied research team, specializes in the design and methodology of surveys and survey sampling. He has held several positions at ACT, one of which was director of survey research. Prior to that, he led survey-related work at the University of Colorado Boulder.

Kristin Lansing-Stoeffler is a Senior Learning Solutions Designer in ACT’s Center for Social, Emotional, and Academic Learning. Her background is in student engagement and the innovative measurement of 21st century skills including Creative Thinking, Collaborative Problem Solving, Critical Thinking, and ICT.

Melinda Taylor is a principal solutions designer in Research and Psychometrics. She provides thought leadership to the organization around product and process enhancements in support of the strategic mission as well as guidance to cross-functional teams on implementation of changes.

Eric Vincent is Program Director of Credentialing and Career Services. He develops tests that provide professional and career credentials and meet accreditation requirements. 

Shichao Wang is a psychometrician in the Assessment Transformation department specializing in test equating and scaling and supports for automatic test assembly.

Linette Weimer is a Program Manager on the Industrial-Organizational (I-O) Psychology team in ACT’s Research department. She is responsible for coordinating a wide variety of activities involving client-related work conducted by I-O team members and is often the first contact for clients interested in services provided by the team. This work includes WorkKeys profiling training and Linette registers clients into training opportunities, facilitates the processing of agreements and billing, tracks clients’ distance learning activities, maintains training materials, as well as assists with special ACT research projects such as generating cross walks and standard setting. 

Scott Wood is a Lead Research Scientist at ACT, specializing in automated essay scoring and automated constructed response scoring. He has conducted research on the CRASE+ automated scoring engine and has overseen operational automated scoring on summative, formative, practice, and research assessments for over 10 years.