CSTAT hosted a series of workshops and consulting sessions for visiting researchers from Universidad César Vallejo (Peru) as part of a three-week collaboration program with Michigan State University. Participants received training in study design, survey development, missing data, meta-analysis, causal inference, AI-related reporting guidelines, data management, and statistical consulting.

In a study of corneal endothelial cell differences between dogs with and without the ADAMTS10 mutation, statistical models needed to account for multivariate response and repeated measures at multiple levels, with a small sample size. A Bayesian multivariate hierarchical mixed-effects model was successfully employed.

Initial Data Analysis (IDA) is a systematic process to provide reliable knowledge about the data to determine the suitability of the data for the main data analysis.

A continuation-ratio model helps to assess the validity of the self-assessment tests. Using this method a one-unit increase in the CTFL Oral Proficiency Interview – computer (OPIc) was associated with a 131% increase in the odds of passing thresholds on the self-assessment test. Dr. Steven Pierce (CSTAT) and collaborators won the International Language Testing Association (ILTA) "Best Language Testing Article of the Year Award."

Dr. Steven J. Pierce recently presented a talk called Generating reproducible statistical analyses and evaluation reports: Principles, practices, and free software tools at the 2024 conference of the American Evaluation Association.

Progress of leg fracture healing may be discerned by examining gait parameters (max force, lateral, medial, forefoot, hindfoot) from the injured leg as well as from symmetry indices. Results may be used to guide patients in their recovery or alert clinicians of potential interventions. 

In Olympic-style weightlifting, performance is measured by the sum of the best snatch and the best clean and jerk. A determination of who is the “best” weightlifter refers to hypothetical questions such as what weight athletes with a lower body mass would be able to lift if they were athletes with a higher body mass of the same ability. We systematically test functions of body mass using fractional polynomials an their relationships to the weightlifting performance.

There is simultaneous feedback between sport performance and severity of menopausal symptoms. Athletes must balance training intensity and menopausal symptoms to achieve training goals.

"Statistical practice includes activities such as designing the collection of, summarizing, processing, analyzing, interpreting, or presenting data and model or algorithm development and deployment." American Statistical Association.

Our results shed light on the positive influence of presenting female video game players with counterstereotypical traits to reduce discrimination against women in gaming.

When properties and context are not appropriately taken into account, data can speak through lies and riddles as preconditions for meaningful statistics are not met. It is much better to avoid data issues right at the beginning of a data collection than to search for statistical workarounds thereafter.

Population genetic analyses of DNA from four infected dolphins grouped the pathogen Lacazia loboi in a monophyletic cluster sister to P. americana and to the other Paracoccidioides species.