Practice examinations developed at the ACS Examinations Institute ask students to self-report mental effort when answering items. This self-reported mental effort together with performance can be represented in the form of a cognitive efficiency graph for each student giving information on the utilization of cognitive resources and content…

Using multiple versions of an assessment has the potential to introduce item environment effects. These types of effects result in version dependent item characteristics (i.e., difficulty and discrimination). Methods to detect such effects and resulting implications are important for all levels of assessment where multiple forms of an assessment…

Missing data is a regular issue that researchers and practitioners must consider for treatment. Commonly, cases for which data is missing are excluded from inclusion in larger data sets. However, this is not the only option and could artificially alter the sample. Other options are available for imputing missing data. Expanding on work previously…

The American Chemical Society, Division of Chemical Education, Examinations Institute has been developing content maps for the undergraduate program based on subdiscipline specifications since 2008. The Anchoring Concepts Content Maps (or ACCM) have been published in four subdisciplines (general, organic, physical, and inorganic chemistry) with…

The American Chemical Society (ACS), Division of Chemical Education, Examinations Institute, has been developing content maps to describe comprehensively the undergraduate curriculum aligned to traditional subdisciplines. These content maps have been developed through the combined efforts of many faculty members who teach the targeted courses in…

The ability to assess students' content knowledge and make meaningful comparisons of student performance is an important component of instruction. ACS exams have long served as tools for standardized assessment of students' chemistry knowledge. Because these exams are designed by committees of practitioners to cover a breadth of topics in the…

Assessment and evaluation tools and instruments are developed to measure many things from content knowledge to misconceptions to student affect. The standard validation processes for these are regularly conducted and provide strong evidence for the validity of the measurements that are made. As part of the suite of validation tools available to…

For the past eight years, the ACS Examinations Institute has been developing Anchoring Concepts Content Maps for the different subdisciplines taught throughout the undergraduate curriculum. The structure of the map consists of two top levels that are shared throughout the entire curriculum and two subdiscipline specific levels that contain…

The American Chemical Society-Examinations Institute (ACS-EI) released the first ACS Foundations of Inorganic Chemistry Examination in 2016 to better address the two generalized types of inorganic chemistry courses (i.e., at the foundation or second/third-year level and the indepth or third/fourth-year level). The ACS Inorganic Chemistry Exam that…

ACS Examinations provide a lens through which to examine historical changes in topic coverage via analyses of course-specific examinations. This study is an extension of work completed previously by the ACS Exams Research Staff and collaborators in general chemistry, organic chemistry, and physical chemistry to explore content changes in the…

General chemistry courses are often the foundation for the study of other science disciplines and upper-level chemistry concepts. Students who take introductory chemistry courses are more often from health and science-related fields than chemistry. As such, the content taught and assessed in general chemistry courses is envisioned as building…