the pss was designed to measure stressful events in the previous mount.
there aer 14 items in the pss,each measured on a 5-point Likert scale,ranging from "never" to "often."Respondents were asked to indicate how often they felt or thought in certain ways during the previous month. The items were summed to calculate a total perceived score;higher scores indicate greater perceived stress.for this study,Cronbach's alpha coefficient of reliability was .82