Final answer:
Dr. Ibanez likely specializes in psychometrics, focused on psychological measurement, but may also work within industrial-organizational psychology, addressing employee selection and performance appraisals in the workplace.
Step-by-step explanation:
Given Dr. Ibanez's professional interests in assessing people's abilities, skills, beliefs, and personality traits, it is likely that she specializes in psychometrics. This field deals with the theory and technique of psychological measurement, which includes the development and refinement of theoretical approaches to measurement, the creation and validation of assessment instruments and procedures, and the application of quantitative methods to assess peoples' psychological attributes.
However, since Dr. Ibanez is at a career fair, it is also possible that her work could involve aspects of industrial-organizational psychology, particularly the industrial side, which focuses on selecting and evaluating employees. This subfield within psychology is concerned with studying and applying psychological theories and practices to the workplace, enhancing employee performance and well-being. The information provided aligns with the practices of industrial psychology that involve job analysis, employee selection, training, and performance appraisal.