Document Type


Degree Name

Bachelor of Science (B.S.) in Biology and University Honors

First Advisor

Claire Wheeler


The purpose of this study was to measure the association between perceived stress and incidence of infectious disease or illness within a large participant group consisting primarily of local college students residing in Portland, Oregon. This was conducted using the widely used and well validated Perceived Stress Scale (PSS), which was distributed via social media platforms, various Portland State establishments such as the campus recreation center, in addition to reaching students by means of talking with professors and other peers. It was found that the condition regarding whether or not an individual missed class or work due to an illness, was the only condition that provided evidence of a statistical association between illness and perceived stress. We rejected the null hypothesis and accepted the hypothesized claim due to a t-test value of 0.054.