[Experimental] List of manuscripts available for review volunteers
2 manuscripts available for review volunteers
October 19, 2017

Objective: To translate the Perceived Stress Questionnaire (PSQ) into Chinese, validate its reliability and validity in nursing students and investigate the perceived stress level of nursing students.

Method: Forward- and back-translation combined with expert assessment and cross-cultural adaptations were used to construct the Chinese version of the Perceived Stress Questionnaire (C-PSQ). This research adopted a stratified sampling method among 1519 nursing students in 30 classes of Ningbo College of Health Sciences to assess the reliability and validity of the C-PSQ.

Results: The C-PSQ retained all 30 items of the original scale. Principal component analysis extracted five factors that explained 52.136% of the total variance. The S-CVI/Ave was 0.913. The results of the confirmatory factor analysis were as follows: χ 2 /df=4.376, RMR=0.023, GFI=0.921, AGFI=0.907,CFI=0.921, PNFI=0.832, and PGFI=0.782. The scale’s Cronbach’s α was 0.922 CI (0.916, 0.928), and Cronbach’s α of each dimension was 0.899 CI (0.891, 0.907), 0.821 CI (0.807, 0.835), 0.688 CI (0.661, 0.713), 0.703 CI (0.678, 0.726) and 0.523 CI (0.472, 0.570). The correlation coefficient between the first and second test, the first and third test, and the second and third test was 0.725 CI (0.514, 0.878), 0.787 CI (0.607, 0.890), and 0.731 CI (0.506, 0.897), respectively. The average score of perceived stress in nursing students was 0.399±0.138. Different demographic factors were significantly associated with the perceived stress of nursing students.

Discussion:The C-PSQ has good reliability and validity, which means that the scale can be used as a universal tool for psychosomatic studies. The perceived stress of nursing students was relatively high. Further studies are needed.

September 27, 2017
In the aftermath of physical exercise, the valence of people’s feelings tends to be more positive, and their level of arousal higher, than they otherwise would be. We developed a naturalistic methodology for quantifying within-individual fluctuations in affective valence and arousal in relation to bouts of exercise in a sample of 38 recreational runners. Participants provided daily affective reports for six weeks using experience sampling. Information on their runs was harvested from an online platform for athletes, and matched to the affective reports. Average valence and arousal were higher on days when the person had run than on the next day, and higher the day after a run than on the days after that. Over the course of the day of a run, valence and arousal declined significantly as the time since the run increased. Physically fitter participants had more positive valence overall, and this particularly true at baseline (i.e. when they had not run recently). There was some evidence of higher-dose (i.e. longer and faster) runs being associated with lower arousal on the next and subsequent days, though not on the day of the run. Gender did not moderate associations between running and valence or arousal.

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