Medicine and Health Sciences Commons^™

Modelling Stress Constructs With Biomarkers: The Importance Of The Measurment Model, Joanne Bradbury

Joanne Bradbury

Background The transactional model of stress describes a psychological and physiological stress response that is elicited when an environmental demand is perceived to out-weigh the ability to cope with the demand. With perception at its core, this theory explains large variances in human stress responses. A frequently cited measure of stress perception is the Perceived Stress Scale (PSS). A two-step approach to structural equation modelling (SEM) necessitates that a valid measurement model for stress be first established through confirmatory factor analysis (CFA), and then the impact of stress on the biomarkers be assessed. Methods The aims of this study were …