Findings
- NK cell activity was reduced in the second sample
- NK cell activity was most reduced in participants who also reported to have high levels psychological variables
Conclustions
- Examination stress reduces immune function, leaving the individual vunerable to illness
- Immune function is also affected by psychological variables such as stress of life events. These long term stressors may make individuals more vunerable to the added eddect of short-term stressors such as exams
AO2's
-This was essentially a correlational study, so a strong conclustion about cause-and-effect relationship can not be drawn - may be other variables
- High in ecological validity, as it was a real exam
- Low in population validity, only used medical students
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