Please use this identifier to cite or link to this item: https://doi.org/10.1111/j.1600-0668.2004.00280.x
Title: Effects of temperature and outdoor air supply rate on the performance of call center operators in the tropics
Authors: Tham, K.W. 
Keywords: Intervention
Neurobehavioral responses
Perception
Performance
Principal component analysis
Subjective responses
Issue Date: 2004
Source: Tham, K.W. (2004). Effects of temperature and outdoor air supply rate on the performance of call center operators in the tropics. Indoor Air, Supplement 14 (SUPPL. 7) : 119-125. ScholarBank@NUS Repository. https://doi.org/10.1111/j.1600-0668.2004.00280.x
Abstract: A study was performed in a call center that provides billing inquiry services using a 2 x 2 balanced experimental plan for nine consecutive weeks. Two independent variables, temperature and outdoor air supply rate, were combined and introduced to the occupants in a blind intervention approach. The temperature set-points were fixed at 22.5°C and 24.5°C, and outdoor air supply rate at 5 1 /s/p and 10 1/s/p. Temperature and outdoor air supply rate had significant interaction effects on worker's talk time (P < 0.001), which means that the effects of temperature on talk time performance were not independent of the effects of outdoor air supply rate or the opposite. Talk time was reduced significantly when the outdoor air supply rate was increased from 5 1 /s/p to 10 1/s/p at 24.5°C (P < 0.01); this may be associated with the significant reduction in a principal component factor which includes intensity of dryness, aching eyes and nose-related symptoms (P < 0.01). Decreasing the temperature from 24.5°C to 22.5°C at 10 1 /s/p significantly increased talk time (P < 0.01). Analysis of the principal component factor based on the neurobehavioral symptoms also revealed that temperature reduction led to an increased mean factor score of these symptoms (P < 0.04). © Indoor Air (2004).
Source Title: Indoor Air, Supplement
URI: http://scholarbank.nus.edu.sg/handle/10635/45646
ISSN: 09056947
DOI: 10.1111/j.1600-0668.2004.00280.x
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