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Selective effects of colds and influenza on human performance efficiency: a critical appraisal
1School of Psychology, University of Wales, College of Cardiff, UK.
Abstract:
This paper provides an appraisal of the results published from the MRC Common Cold Unit on human performance efficiency during minor upper respiratory tract infection, i.e., colds and influenza. Despite strict controls employed in the methods of data collection, the robustness of the results and some of the conclusions drawn are questioned. In particular, the claim that colds and influenza lead to selective (and different) effects is criticised as being based on incomplete data. The lack of replication, the small sample sizes, possible response biases and use of controls are considered. Overall, it is argued that there are insufficient data to provide conclusive evidence for selective effects and that over-generalisation from such studies can be misleading.
Insights
This review questions the reliability of studies on how colds and influenza impact human performance. It argues that current data is insufficient to prove selective effects on performance efficiency.
Area of Science:
- Medical Research
- Human Performance Studies
- Epidemiology
Background:
- The MRC Common Cold Unit investigated human performance during respiratory infections.
- Previous studies suggested colds and influenza have selective effects on performance.
Purpose of the Study:
- To critically appraise existing research on human performance during common colds and influenza.
- To evaluate the robustness and validity of conclusions drawn from MRC Common Cold Unit studies.
Main Methods:
- Literature review and critical analysis of published results.
- Examination of data collection methods, sample sizes, and statistical controls.
- Assessment of potential biases and replication issues in cited studies.
Main Results:
- Concerns raised regarding the robustness of findings despite controlled data collection.
- Criticism of claims for selective performance effects due to incomplete data.
- Identification of limitations including small sample sizes and potential response biases.
Conclusions:
- Existing data is insufficient to conclusively support selective performance effects from colds or influenza.
- Over-generalization from current studies may be misleading.
- Further rigorous research is needed to understand the true impact on human performance.